As nouns the difference between rationale and reason
is that rationale is an explanation of the basis or fundamental reasons for something while reason is a cause:.
What is the difference between reason and rationalism?
As nouns the difference between reason and rationalism
is that reason is a cause: while rationalism is (philosophy) the theory that the basis of knowledge is reason, rather than experience or divine revelation.
What does rationale mean in simple terms?
1 : an explanation of controlling principles of opinion, belief, practice, or phenomena. 2 : an underlying reason : basis.