- Definitions|2
- Thesaurus|2k
- Abbreviations|0
89 entries under rational topic. ×
| acute(adjective, understanding, smooth, keen, sharp) | |
| discerning(adjective, understanding, cool, smooth, keen) | |
| able(adjective, good, keen, sharp, smart) | |
| learned(adjective, smooth, knowledge, smart, experience) | |
| ruminative(adjective, reasonable, thoughtful, sober) | |
| sage(adjective, understanding, cool, keen, sharp) | |
| understanding(adjective, sharp, smart, bright, sensitive) | |
| alive(adjective, cool, smart, bright, significant) | |
| deep(adjective, keen, sharp, smart, bright) | |
| well-informed(adjective, cool, knowledge, smart, bright) | |
| bookish(adjective, intelligent, thoughtful, serious) | |
| ingenious(adjective, smooth, keen, sharp, smart) | |
| mental(adjective, mind, intelligent, thoughtful) | |
| penetrating(adjective, understanding, keen, sharp, smart) | |
| psychological(adjective, intelligent, thoughtful, intellect) | |
| reasonable(adjective, keen, smart, bright, sensible) | |
| thinking(adjective, reasonable, keen, smart, bright) | |
| academic(adjective, bright, intelligent, thoughtful) | |
| calculating(adjective, smooth, reasonable, keen, sharp) | |
| logical(adjective, reasonable, keen, sensible, deep) |
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| APA | Smart Define. (2016). brainy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/brainy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "brainy thesaurus" https://smartdefine.org/brainy/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, brainy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/brainy/thesaurus/synonyms>. |
| MLA | Smart Define. "brainy thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/brainy/thesaurus/synonyms> |