| specified | |
| stable(weak, soft, changeable) | |
| steely | |
| transparent | |
| truly(adverb, unmistakably, falsely, authentically, indisputably) | |
| undeniable(adjective, definite, proven) | |
| undoubtedly(adverb, unmistakably, authentically, doubtfully, indisputably) | |
| univocal | |
| unquestionable(adjective, definite) | |
| very(adverb, little, unmistakably, authentically, indisputably) | |
| vivid | |
| absolute | |
| absolutely(adverb, uncertain, unmistakably, authentically, doubtfully) | |
| accepted | |
| acknowledged | |
| adept(green, inept) | |
| adhesive | |
| admittedly(adverb, unmistakably, authentically, indisputably, veritably) | |
| aforethought(careless, thoughtless) | |
| all in all(expression, idiom, adverb, unmistakably, authentically) |
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| APA | Smart Define. (2015). indefinite thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indefinite/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "indefinite thesaurus" https://smartdefine.org/indefinite/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, indefinite thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indefinite/thesaurus/antonyms>. |
| MLA | Smart Define. "indefinite thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/indefinite/thesaurus/antonyms> |