71 entries under effective topic. ×

18
efficacious(adjective, strong, power, valid)
17
functional(adjective, active, useful, real, practical)
15
effectual(adjective, strong, power, valid)
14
efficient(adjective, strong, direct, energetic, lively)
13
working(adjective, action, energetic, lively, active)
12
operational(adjective, active, practical, running)
11
active(adjective, action, movement, direct, moving)
11
serviceable(adjective, direct, active, useful, valuable)
10
functioning(adjective, action, active, awareness)
10
running(verb, adjective, action, active, awareness)
9
usable(adjective, free, friendly, appropriate, active)
8
alive(adjective, action, moving, active, animate)
8
operating(adjective, action, moving, active, awareness)
6
powerful
6
useful(adjective, direct, active, valuable, real)
5
adequate
5
going(adjective, action, active, awareness)
5
potent(important, powerful)
2
cogent(important, powerful)
2
decisive(important, powerful)
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APASmart Define. (2015). operative thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/operative/thesaurus/synonyms
ChicagoSmart Define. 2015. "operative thesaurus" https://smartdefine.org/operative/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, operative thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/operative/thesaurus/synonyms>.
MLASmart Define. "operative thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/operative/thesaurus/synonyms>