Rationalism Definition

răshə-nə-lĭzəm
noun
Reliance on reason as the best guide for belief and action.
American Heritage
The principle or practice of accepting reason as the only authority in determining one's opinions or course of action.
Webster's New World
The doctrine that knowledge comes from the intellect in itself without aid from the senses; intellectualism.
Webster's New World

Other Word Forms of Rationalism

Noun

Singular:
rationalism
Plural:
rationalisms

Origin of Rationalism

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rationalism