That was a lamebrain idea to go outside with no coat.
I can't believe I made such a lamebrain mistake on the exam, it was so simple.
Frequently Asked Questions
The phonetic transcription of "lamebrain" is /ˈleɪm.breɪn/ in British English and /ˈleɪm.breɪn/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "lamebrain": fool, idiot, nitwit, blockhead, dummy, simpleton.
Example usage of "lamebrain": "Don't be such a lamebrain and lock the door.". More examples on the page.