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Slacks vs. Trousers: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on December 25, 2023
Slacks are usually less formal, loose-fitting pants, whereas trousers are a more formal, tailored garment.
Slacks vs. Trousers

Key Differences

Slacks often refer to casual or dress pants that are not part of a suit, commonly used in American English, while trousers are a more general term for all types of pants, more commonly used in British English.
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Nov 27, 2023
Trousers are known for their tailored fit, suitable for formal attire and professional settings, whereas slacks might have a more relaxed fit and could be considered less formal.
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The term slacks is sometimes used to describe lightweight, comfortable pants for informal occasions, while trousers can encompass a wide range of styles, including those appropriate for formal, business, or work attire.
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Nov 27, 2023
In terms of fabric, slacks are often made from softer materials like cotton or synthetic blends, making them ideal for casual wear. Trousers, on the other hand, are frequently made from sturdier fabrics like wool or tweed, affirming their formality.
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While the word slacks may conjure images of comfort and ease, trousers evoke a sense of formality and are often associated with traditional professional dress codes.
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Comparison Chart

Formality

Typically less formal.
Generally more formal.
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Fit

Often loose or relaxed fit.
Usually tailored or structured.
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Usage

More common in American English.
More common in British English.
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Material

Made from a variety of fabrics, often lighter.
Often made of wool or finer fabrics.
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Association

Casual business or leisure wear.
Professional and formal settings.
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Slacks and Trousers Definitions

Slacks

Dress pants typically lighter in fabric.
Her slacks were perfect for the summer heat.
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Nov 08, 2023

Trousers

The British term for the outer garment covering the body from the waist to the ankles.
She prefers classic trousers for work.
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Slacks

A term for trousers used mainly in the U.S.
Slacks are her preferred attire for casual Fridays.
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Trousers

Often part of a matching suit.
The trousers matched his blazer perfectly.
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Slacks

Casual pants that are not jeans or chinos.
He wore a pair of gray slacks to the barbecue.
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Trousers

A garment for the lower body that is tailored.
His suit trousers were impeccably pressed.
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Slacks

Not tense or taut; loose
A slack rope.
Slack muscles.
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Oct 19, 2023

Trousers

Any full-length pants.
The hikers donned waterproof trousers for their trek.
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Nov 08, 2023

Slacks

Lacking in activity; not busy
A slack season for the travel business.
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Oct 19, 2023

Trousers

Pants worn for formal or professional attire.
He had to buy new trousers for the interview.
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Slacks

Moving slowly; sluggish
A slack pace.
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Oct 19, 2023

Trousers

An article of clothing that covers the part of the body between the waist and the ankles or knees, and is divided into a separate part for each leg.
The trousers need to be shortened.
Why can women wear trousers when men can’t wear skirts?
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Slacks

Lacking in diligence or due care or concern; negligent
A slack worker.
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Trousers

A garment worn by men and boys, extending from the waist to the knee or to the ankle, and covering each leg separately.
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Slacks

Flowing or blowing with little speed
A slack current.
Slack winds.
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Trousers

(usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately;
He had a sharp crease in his trousers
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Oct 19, 2023

Slacks

(Linguistics) Pronounced with the muscles of the tongue and jaw relatively relaxed; lax.
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Slacks

To make looser or less taut
Slacked the sail.
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Slacks

To make slower
Slacked our pace.
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Slacks

To be careless or remiss in doing
Slack one's duty.
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Slacks

To slake (lime).
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Slacks

To be or become slack.
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Slacks

To be inactive or avoid work
Slacked around the house all day.
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Slacks

A loose part, as of a rope or sail
Hauled in the slack.
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Slacks

A period of little activity; a lull
A slack in business.
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Slacks

A cessation of movement in a current of air or water.
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Slacks

An area of still water.
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Slacks

Unused capacity
Still some slack in the economy.
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Slacks

Slacks Casual pants that are not part of a suit.
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Slacks

A mixture of coal fragments, coal dust, and dirt that remains after screening coal.
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Slacks

A small dell or hollow.
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Slacks

A bog; a morass.
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Slacks

In a slack manner
A banner hanging slack.
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Slacks

Plural of slack
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Slacks

(dated) Semi-formal trousers which are less formal than those that are part of a suit but nowadays are considered suitable casualwear in most offices. (Takes a plural verb even when referring to a single pair; may be referred to as a pair of slacks.)
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Slacks

(usually in the plural) pants for casual wear
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Slacks

Pants with a loose fit for comfort.
After work, he changed into his favorite slacks.
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Nov 08, 2023

Slacks

Men's or women's pants for informal occasions.
She packed slacks for her vacation.
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Repeatedly Asked Queries

Can women wear slacks?

Yes, slacks are made for both men and women.
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Nov 27, 2023

Do slacks come in different colors?

Absolutely, slacks are available in a wide range of colors.
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Are all trousers part of a suit?

No, trousers can be sold separately from suits.
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Are slacks and trousers interchangeable terms?

They can be, but slacks often imply a less formal style.
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Can trousers be casual?

While usually formal, there are casual styles of trousers.
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Can slacks be worn to work?

Yes, slacks are often appropriate for a business casual environment.
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Are jeans considered slacks or trousers?

Jeans are typically categorized separately from slacks and trousers.
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Do slacks have pockets?

Most slacks have pockets, but some may not for a sleeker look.
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Are cargo pants considered trousers?

Yes, cargo pants are a type of casual trousers.
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Are trousers suitable for formal events?

Yes, trousers are often worn for formal occasions.
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Are pleated pants considered slacks or trousers?

Pleated pants can be both, depending on their style and material.
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Is there a difference in the way slacks and trousers are washed?

Yes, care instructions may vary based on material and style.
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Do slacks require a belt?

It depends on the fit and style, but many slacks are designed to be worn with a belt.
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Can I wear slacks with a blazer?

Yes, slacks can be dressed up with a blazer.
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Do slacks come in different cuts?

Yes, there are straight-leg, wide-leg, and slim-fit slacks, among others.
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Can both slacks and trousers be tailored?

Yes, both can be altered for a better fit.
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Are trousers only made of wool?

No, they can be made from a variety of materials.
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Are trousers a British term?

Yes, trousers is commonly used in British English.
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Are chinos slacks or trousers?

Chinos are a type of trousers and can be considered a style of slacks.
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Do slacks or trousers have cuffs at the bottom?

Some styles do, while others have a plain hem.
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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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