71 entries under rational topic. ×

4
engrossed(adjective, reasonable, keen, deep)
4
mental(adjective, mind, intellectual, supernatural)
4
philosophical(adjective, thought, intelligent, thoughtful)
4
pragmatic
4
psychological(adjective, intellectual, supernatural, spiritual)
4
sober(adjective, sound, reasonable, keen, sensible)
3
attentive(adjective, reasonable, keen, deep)
3
brainy(adjective, reasonable, keen, smart, bright)
3
knowing(noun, adjective, understanding, sound, reasonable)
3
melancholy(adjective, reasonable, keen, deep)
3
museful(adjective, reasonable, keen, thought, deep)
3
psychical(adjective, reasoning, intellectual, supernatural)
3
ruminating(noun, adjective, intelligent, thoughtful)
3
studious(adjective, reasonable, keen, thought, deep)
2
bright(adjective, smart, intelligent, thoughtful)
2
conceptual(cerebral, psychological)
2
perceiving(noun, verb, adjective, understanding, attention)
2
phrenic(heavy, intellectual, supernatural, spiritual)
2
psychic(intellectual, supernatural, spiritual, cerebral)
2
spiritual(intellectual, supernatural, psychic, cerebral)
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APASmart Define. (2016). thinking thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thinking/thesaurus/synonyms
ChicagoSmart Define. 2016. "thinking thesaurus" https://smartdefine.org/thinking/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, thinking thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thinking/thesaurus/synonyms>.
MLASmart Define. "thinking thesaurus" 11 February 2016. Web. 22 September 2026. <https://smartdefine.org/thinking/thesaurus/synonyms>