Dictionary
crackbrain
noun crack·brain \-ˌbrān\
Definition of CRACKBRAIN
: an erratic person : crackpot
— crack·brained \-ˈbrānd\ adjective
See crackbrain defined for kids
ADVERTISEMENT
First Known Use of CRACKBRAIN
circa 1570
Learn More About CRACKBRAIN
Browse
Next Word in the Dictionary: crackdownPrevious Word in the Dictionary: crackbackAll Words Near: crackbrain
ADVERTISEMENT
Seen & Heard
What made you want to look up crackbrain? Please tell us where you read or heard it (including the quote, if possible).