| complex(adjective, hard, vague, involved, intricate) | |
| difficult(adjective, hard, complicated) | |
| clever | |
| smart(adjective, hard, complex, vague) | |
| intelligent(adjective, mind, behavior, idiotism, hard) | |
| complicated(adjective, hard, complex, vague) | |
| ornate(adjective, hard, plain, complex, vague) | |
| sophisticated(adjective, inexperienced, unrefined) | |
| multidimensional | |
| intricate(adjective, clear, hard, complex, vague) | |
| purple | |
| convoluted(adjective, hard, complex, straightforward, vague) | |
| exacting(adjective, hard, complex, vague) | |
| elaborate(adjective, easy, involved, intricate) | |
| hard(adjective, kind, gentle, bright, complex) | |
| devious(adjective, dishonest) | |
| abstruse(adjective, hard, difficult, complex, vague) | |
| aware(adjective, hard, complex, vague) | |
| dishonest | |
| doubting |
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| APA | Smart Define. (2016). simple thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/simple/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/antonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, simple thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/simple/thesaurus/antonyms>. |
| MLA | Smart Define. "simple thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/simple/thesaurus/antonyms> |