| accordant | |
| accurate(good, correct, appropriate) | |
| active(tough, energetic, effective, running, working) | |
| adept(tough, energetic, effective, effectual, well-organized) | |
| admired(adjective, important, expensive, scarce, beneficial) | |
| advantage | |
| agential | |
| agentival | |
| agentive | |
| aidful | |
| aiding(adjective, appropriate, clean, pure, agreeable) | |
| ancillary(adjective, minor, helpful, secondary, lesser) | |
| apply | |
| apposite(good, correct, fit, appropriate, suitable) | |
| appreciated(adjective, important, expensive, scarce, beneficial) | |
| appurtenant(good, true, suitable, minor, helpful) | |
| at rest(expression, adjective, secure, soft, pleasant) | |
| balanced | |
| banausic | |
| bankable |
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| APA | Smart Define. (2016). useful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/useful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "useful thesaurus" https://smartdefine.org/useful/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, useful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/useful/thesaurus/synonyms>. |
| MLA | Smart Define. "useful thesaurus" 5 January 2016. Web. 24 September 2026. <https://smartdefine.org/useful/thesaurus/synonyms> |