boneheaded
/ˈboʊnˌhɛdɪd/
adjective
- Stupid, foolish, or showing a lack of good judgment.
- She admitted her boneheaded decision to invest all her savings in one stock.
- It was a boneheaded move to leave the windows open during the storm.
- The player made a boneheaded mistake that cost his team the game.
Antonyms