Sufficient vs. Efficient

Difference Between Sufficient and Efficient
Sufficientadjective
Being as much as is needed; adequate; enough.
Efficientadjective
Acting or producing effectively with a minimum of waste, expense, or unnecessary effort
an efficient builder.an efficient factory.Sufficientadjective
(Archaic) Competent; qualified.
Efficientadjective
Acting directly to produce an effect
the efficient cause of the revolution.Sufficientadjective
Equal to the end proposed; adequate to what is needed; enough
We have provision sufficient for the familyThis army is sufficient to defend the country.There is not sufficient access to the internet in many small rural villages.Efficientadjective
Causing less waste or requiring less effort than comparable devices or methods. Used in combination
energy-efficient wind turbines.cost-efficient health care.Sufficientadjective
Possessing adequate talents or accomplishments; of competent power or ability; qualified; fit.
A two-week training course is sufficient to get a job in the coach-driving profession.Efficientadjective
Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.
An efficient process would automate all the routine work.Our cleaners are almost too efficient: they throw away anything left out on a desk.Sufficientadjective
(archaic) Capable of meeting obligations; responsible.
Efficientadjective
Expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful output to total input.
The motor is only 20% efficient at that temperature.Sufficientadjective
(obsolete) Having enough money to meet obligations and live comfortably.
Efficientadjective
Causing effects, producing results; bringing into being; initiating change. (Rare except in philosophical and legal expression efficient cause = causative factor or agent.)
Ownership, maintenance, or use of the automobile need not be the direct and efficient cause of the injury sustainedSufficientdeterminer
The smallest amount needed.
Sufficient of us are against this idea that we should stop now.Efficientadjective
(proscribed, old use) Effective.
Sufficientadjective
of a quantity that can fulfill a need or requirement but without being abundant;
sufficient foodEfficientadjective
being effective without wasting time or effort or expense;
an efficient production managerefficient engines save gasEfficientadjective
able to accomplish a purpose; functioning effectively;
people who will do nothing unless they get something out of it for themselves are often highly effective persons...effective personnelan efficient secretarythe efficient cause of the revolution