Noun

• S: (n) thinker, creative thinker, mind (an important intellectual) "the great minds of the 17th century"
• S: (n) thinker (someone who exercises the mind (usually in an effort to reach a decision))
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• S: (n) intellectual, intellect (a person who uses the mind creatively)
• S: (n) anomalist (someone who has a special interest in exceptional cases)
• S: (n) exponent (someone who expounds and interprets or explains)
• S: (n) alchemist (one who was versed in the practice of alchemy and who sought an elixir of life and a panacea and an alkahest and the philosopher's stone)
• S: (n) aphorist (someone who formulates aphorisms or who repeats aphorisms)
• S: (n) bel esprit (a witty or clever person with a fine mind)
• S: (n) clever Dick, clever clogs (an intellectual who is ostentatiously and irritatingly knowledgeable)
• S: (n) decoder, decipherer (the kind of intellectual who converts messages from a code to plain text)
• S: (n) egghead (an intellectual; a very studious and academic person) "in spite of her love of reading she denied being an egghead"
• S: (n) expositor, expounder (a person who explains)
• S: (n) genius, mastermind, brain, brainiac, Einstein (someone who has exceptional intellectual ability and originality) "Mozart was a child genius"; "he's smart but he's no Einstein"
• S: (n) highbrow (a person of intellectual or erudite tastes)
• S: (n) mentor, wise man (a wise and trusted guide and advisor)
• S: (n) scholar, scholarly person, bookman, student (a learned person (especially in the humanities); someone who by long study has gained mastery in one or more disciplines)
• S: (n) skeptic, sceptic, doubter (someone who habitually doubts accepted beliefs)
• S: (n) specifier (someone who draws up specifications giving details (as for obtaining a patent))
• S: (n) subjectivist (a person who subscribes to subjectivism)
• S: (n) synthesist, synthesizer, synthesiser (an intellectual who synthesizes or uses synthetic methods)
• S: (n) theorist, theoretician, theorizer, theoriser, idealogue (someone who theorizes (especially in science or art))
• S: (n) thinker, creative thinker, mind (an important intellectual) "the great minds of the 17th century"
• S: (n) thinker (someone who exercises the mind (usually in an effort to reach a decision))
• S: (n) visionary, illusionist, seer (a person with unusual powers of foresight)
• S: (n) wonderer (someone who is curious about something)
• derivationally related form