110 entries under rational topic. ×
| intellectual(adjective, sound, reasonable, smart, sensible) | |
| mental(adjective, mind, smart, intelligent) | |
| cognitive(adjective, sound, reasonable, sensible) | |
| intelligent(adjective, sound, reasonable, smart, sensible) | |
| psychological(adjective, mind, intelligent, intellect) | |
| psychic(adjective, intellectual, supernatural, mental) | |
| psychical(adjective, intellect, emotional, reasoning) | |
| brainy(adjective, reasonable, intelligent, thoughtful) | |
| highbrow(adjective, informal, intelligent, thoughtful) | |
| spiritual(adjective, intellect, emotional, intellectual) | |
| subjective(adjective, reasonable, intelligent, thoughtful) | |
| reasoning(adjective, sound, reasonable, sensible) | |
| ruminative(adjective, reasonable, thoughtful, sober) | |
| thinking(adjective, sound, reasonable, keen, sensible) | |
| thoughtful(adjective, sound, reasonable, sensible) | |
| erudite(adjective, serious, wise, intellectual) | |
| highbrowed(intelligent, thoughtful, knowledgeable) | |
| conceptual(adjective, psychological) | |
| deep(adjective, reasonable, keen, thoughtful) | |
| philosophic(adjective, sound, reasonable, keen, sensible) |
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| APA | Smart Define. (2015). cerebral thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/cerebral/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cerebral thesaurus" https://smartdefine.org/cerebral/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, cerebral thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/cerebral/thesaurus/synonyms>. |
| MLA | Smart Define. "cerebral thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/cerebral/thesaurus/synonyms> |