| imagination | |
| impression | |
| inactivity(noun, failure, fiction) | |
| inexactness(truth, honesty) | |
| inference | |
| mirage | |
| misconstruction | |
| mythology | |
| nonsense(noun, sense, judgment, craziness, ridiculousness) | |
| nuance(noun, entity, matter, exactness) | |
| premise(noun, argument, rejection, hypothesis) | |
| propaganda | |
| supposition(noun, belief, guess, truth) | |
| theorem(noun, explanation, addition) | |
| theory(noun, failure, belief, truth, fiction) | |
| thought(truth, certainty) | |
| tripe | |
| whim | |
| whopper | |
| abstraction |
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| APA | Smart Define. (2016). fact thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fact/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "fact thesaurus" https://smartdefine.org/fact/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, fact thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fact/thesaurus/antonyms>. |
| MLA | Smart Define. "fact thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/fact/thesaurus/antonyms> |