Rationalist



[rash-uh-nl-iz-uh m] /ˈræʃ ə nlˌɪz əm/

noun
1.
the principle or habit of accepting reason as the supreme authority in matters of opinion, belief, or conduct.
2.
Philosophy.

3.
Theology. the doctrine that human reason, unaided by divine revelation, is an adequate or the sole guide to all attainable religious truth.
4.
Architecture. (often initial capital letter)

/ˈræʃənəˌlɪzəm/
noun
1.
reliance on reason rather than intuition to justify one’s beliefs or actions
2.
(philosophy)

3.
the belief that knowledge and truth are ascertained by rational thought and not by divine or supernatural revelation
n.

“one who follows reason and not authority in thought or speculation,” originally especially “physician whose treatment is based on reason,” 1620s, from rational + -ist. Applied to a philosophical doctrine 1640s. Related: Rationalism.

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