stupidly
adverb
UK/ˈstjuː.pɪd.li/
US/ˈstuː.pɪd.li/
Definitions of stupidly adverb
in a manner that demonstrates a lack of good judgment or intelligence
He made a poor decision, acting stupidly by believing the rumors.
She stupidly left her wallet at home.
He stupidly revealed the secret in a moment of folly.