fatuous
adjective C2
Plain meaning
silly, foolish, and not worth taking seriously
Exam-register meaning
vacuous or foolish in a way that shows lack of serious thought
In context
naturalIt was a fatuous comment to make during a serious meeting.
examThe essay dismisses the proposal as fatuous because it ignores economic realities.
Common collocations
fatuous remarkfatuous argumentfatuous optimism
Watch out
Fatuous is very negative and formal; avoid using it casually with students or clients.
Word family
fatuously (adverb)fatuity (noun)