Definition of "unreasoning"
adjective
comparative more unreasoning, superlative most unreasoning
Lacking or without reason.
Quotations
When we consider the enormous amount of suffering and disease, both of mind and body, arising from the sex-suppression of which I have just spoken, especially among women, we see that mere unreasoning taboos - which possibly had their place and use in the past - can be tolerated no longer.
1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921, page 196