reasonless

[ ree-zuh n-lis ]
/ ˈri zən lɪs /

adjective

not having any reason or sense: an utterly reasonless display of anger.
not having a natural capacity for reason.

Origin of reasonless

First recorded in 1350–1400, reasonless is from the Middle English word resonles. See reason, -less

OTHER WORDS FROM reasonless

rea·son·less·ly, adverb rea·son·less·ness, noun

Example sentences from the Web for reasonless