- Definitions|2
- Thesaurus|876
- Abbreviations|0
94 entries under adjective topic. ×
| going(moving, active, effective, running) | |
| instrumental(strong, important, powerful, significant) | |
| just(good, sound, right, reasonable) | |
| legally valid(strong, power, valid, legal) | |
| lucky(strong, happy, positive, beneficial) | |
| positive(helpful, beneficial, favorable, optimistic) | |
| potential | |
| providential(happy, beneficial, fortunate, opportune) | |
| real | |
| right(good, sound, reasonable, happy) | |
| satisfactory(sound, happy, flawless, fortunate) | |
| seasonable(reasonable, happy, sensible, rational) | |
| suitable(friendly, happy, sympathetic, useful) | |
| timely(friendly, happy, sympathetic, useful) | |
| accidental(happy, beneficial, fortunate, opportune) | |
| appropriate(happy, beneficial, fortunate, opportune) | |
| befitting(happy, beneficial, fortunate, opportune) | |
| casual(happy, beneficial, fortunate, opportune) | |
| drastic | |
| energetical |
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| APA | Smart Define. (2015). efficacious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, efficacious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>. |
| MLA | Smart Define. "efficacious thesaurus" 13 October 2015. Web. 23 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms> |