efficient

Fetched 2026-10-26 (cache).

Synonyms: -efficient, deficient, sufficient, perficient, efficiency, officiant, inefficient, coefficient, effodient, efficience

Antonyms: -efficient, deficient, sufficient, perficient, efficiency, officiant, inefficient, coefficient, effodient, efficience

Related words from Datamuse; suggestions, not definitions.

Adjective

1. Making good, [[thorough]], or careful use of [[resources]]; not [[consuming]] extra. Especially, making good use of [[time]] or [[energy]].
2. Expressing the [[proportion]] of [[consumed]] [[energy]] that was successfully used in a process; the ratio of useful output to total input.
3. Causing effects, producing results; bringing into being; initiating [[change]] (rare except in philosophical and legal expression ''[[efficient cause]]'' = [[causative]] [[factor]] or [[agent]]).
4. {{lb|en|proscribed|old use}} [[effective]], [[efficacious]]

Noun

1. {{lb|en|obsolete}} A [[cause]]; something that causes an effect.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.