9
expeditious(adjective, regular, quick, serious, responsive)
9
powerful(adjective, good, strong, power, direct)
8
accomplished(adjective, good, keen, smart, suitable)
8
good(adjective, sound, right, reasonable, decent)
8
skillful(adjective, keen, smart, intelligent, skilled)
8
streamlined
7
adept(adjective, suitable, expert, skilled, competent)
7
serviceable(adjective, open, direct, reasonable, active)
7
deft(adjective, keen, smart, intelligent, competent)
7
economic(adjective, effective, adept)
7
fitting
7
functional(adjective, strong, open, reasonable, sensible)
7
suitable(adjective, useful, decent, knowledgeable, adequate)
7
talented(adjective, keen, smart, suitable, intelligent)
6
expedient(adjective, useful, expedient, utility)
6
neat(adjective, exact, small, careful, regular)
6
professional(adjective, regular, serious, practical, skilled)
6
skilful
6
systematic(adjective, reasonable, sensible, exact, ordinary)
6
virtuous(adjective, good, innocent, worthy, effective)
11 years ago|19k views|share |citing 
APASmart Define. (2015). efficient thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficient/thesaurus/synonyms
ChicagoSmart Define. 2015. "efficient thesaurus" https://smartdefine.org/efficient/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, efficient thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficient/thesaurus/synonyms>.
MLASmart Define. "efficient thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/efficient/thesaurus/synonyms>