752 entries under adjective topic. ×
| second-nature(inside, instinctive, interior, automatic) | |
| straightforward(open, direct, free, simple) | |
| unthinking(instinctive, gut, automatic, intuitive) | |
| frank(open, free, simple, easy) | |
| constitutional(start, complete, basic, instinctive) | |
| informal(adverb, calm, open, smooth) | |
| unpremeditated(impulse, instinctive, automatic, involuntary) | |
| unpretentious(calm, open, smooth, simple) | |
| casual(adverb, calm, open, smooth) | |
| characteristic(simple, common, ordinary, familiar) | |
| innocent(open, smooth, simple, friendly) | |
| unfeigned(open, correct, right, honest) | |
| unlearned(simple, crude, ignorant, unsophisticated) | |
| unstudied(open, simple, reasonable, clean) | |
| authentic(simple, correct, right, bright) | |
| conventional(characteristic, simple, pure, common) | |
| deep-seated(characteristic, essential, basic, instinctive) | |
| easygoing(calm, simple, plain, informal) | |
| everyday(characteristic, simple, informal, pure) | |
| faithful(open, honest, true, straightforward) |
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| APA | Smart Define. (2016). natural thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/natural/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "natural thesaurus" https://smartdefine.org/natural/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, natural thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/natural/thesaurus/synonyms>. |
| MLA | Smart Define. "natural thesaurus" 15 February 2016. Web. 28 September 2026. <https://smartdefine.org/natural/thesaurus/synonyms> |