| unaware(adjective, indifferent, careful, ignorant) | |
| oblivious | |
| ignorant(adjective, indifferent) | |
| unwitting(adjective, indifferent) | |
| uninformed(adjective, indifferent) | |
| incognizant(adjective, unaware) | |
| unmindful(adjective, indifferent) | |
| crazy | |
| insensible | |
| silly | |
| unfamiliar(adjective, indifferent) | |
| fickle(adjective, cold, hot, steady, vacillating) | |
| insane | |
| unconscious | |
| innocent | |
| insentient | |
| mindless | |
| stupid(adjective, sharp, intelligent, irresponsible) | |
| thoughtless(adjective, indifferent) | |
| unacquainted |
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| APA | Smart Define. (2015). cognizant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/cognizant/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "cognizant thesaurus" https://smartdefine.org/cognizant/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, cognizant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/cognizant/thesaurus/antonyms>. |
| MLA | Smart Define. "cognizant thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/cognizant/thesaurus/antonyms> |