unreasoned

adjective
un·​rea·​soned | \ ˌən-ˈrē-zᵊnd How to pronounce unreasoned (audio) \

Definition of unreasoned

: not founded on reason or reasoning unreasoned fears an unreasoned decision

First Known Use of unreasoned

1779, in the meaning defined above

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The first known use of unreasoned was in 1779

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