asinine

/ˈæsəˌnaɪn/

extremely stupid or foolish

asinine in a sentence

“The asinine decision cost the company millions.”

Latin asinus ass, donkey, meaning like a donkey, stupid

Related Words

puerile

childishly silly and trivial

jejune

naive, simplistic, and superficial; dull

pedestrian

lacking inspiration or excitement; dull

banal

so lacking in originality as to be obvious and boring

trite

lacking originality or freshness; overused

hackneyed

lacking significance through overuse; unoriginal