- Definitions|1
- Thesaurus|229
- Abbreviations|0
10 entries under reasonable topic. ×
| sensible(adjective, sound) | |
| rational(adjective, sound) | |
| sane(adjective, sound) | |
| common-sense | |
| sound | |
| astute(adjective, sound) | |
| commonsensical(adjective, sound) | |
| levelheaded(adjective, sound) | |
| matter of fact(expression, idiom) | |
| shrewd(adjective, sound) |
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| APA | Smart Define. (2015). hard-headed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hard-headed/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hard-headed thesaurus" https://smartdefine.org/hard-headed/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, hard-headed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hard-headed/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-headed thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/hard-headed/thesaurus/synonyms> |