thinker
[noun]
Synonyms: philosopher, brain (informal), intellect (informal), mastermind, sage, theorist, wise man

[TahlilGaran] English Synonym Dictionary ▲

Think‧er, The /ˈθɪŋkəʳ/
a sculpture by Auguste Rodin of a man sitting and thinking with his elbow on his knee and his chin on his hand

[TahlilGaran] Dictionary of Contemporary English ▲

think‧er /ˈθɪŋkə $ -ər/ noun [countable]
[Word Family: noun: think, rethink, thinker, thinking, the unthinkable; verb: think, rethink; adjective: thinkable ≠ unthinkable, thinking ≠ unthinking; adverb: unthinkingly]

1. someone who thinks carefully about important subjects such as science or philosophy, especially someone who is famous for thinking of new ideas:
great thinkers such as Kant and Schopenhauer

2. an independent/a positive/a free etc thinker a person who thinks in a particular way

[TahlilGaran] Dictionary of Contemporary English ▲

thinker
noun
ADJ. great, leading Einstein was one of the world's greatest thinkers.
deep, profound, serious | clear, logical | lateral | quick | creative, original | strategic | political, religious, scientific, etc. | conservative, liberal, radical, etc. | Christian, Marxist, western, etc.
PREP. ~ on a leading thinker on constitutional law

[TahlilGaran] Collocations Dictionary ▲