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rationalist

noun [C]
 
 
/ˈræʃ.ən.əl.ɪst/

Definition

someone whose actions and decisions are based on reason rather than emotions or beliefsPhilosophy rationalist
 
 
/ˈræʃ.ən.əl.ɪst/ adjective (also rationalistic)
(Definition of rationalist noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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