382 entries under adjective topic. ×

9
sagacious(sharp, smart, sensible, intelligent)
8
arcane(obscure, complex, deep, mysterious)
8
astute(sharp, smart, bright, sensible)
8
discerning(sharp, smart, bright, intelligent)
8
intelligent(keen, sharp, smart, bright)
8
intimate(secret, private, personal, innermost)
8
knowing(sharp, smart, bright, intelligent)
8
sound(noun, reasonable, sensible, wise)
8
strong(strong, hard, great, sharp)
8
utter(great, intense, full, emotional)
7
absolute(great, intense, full, emotional)
7
enigmatic(hard, obscure, deep, tricky)
7
fathomless(deep, bottomless)
7
fundamental(abstract, theoretical, abstruse, philosophical)
7
incomprehensible
7
learned(deep, thoughtful, moral, intellectual)
7
occult(obscure, complex, deep, thoughtful)
7
scholarly(obscure, smart, bright, complex)
7
sharp(strong, keen, smart, bright)
7
unfathomed
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APASmart Define. (2016). profound thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/profound/thesaurus/synonyms
ChicagoSmart Define. 2016. "profound thesaurus" https://smartdefine.org/profound/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, profound thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/profound/thesaurus/synonyms>.
MLASmart Define. "profound thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/profound/thesaurus/synonyms>