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birdbrain

[burd-breyn]
See more synonyms for birdbrain on Thesaurus.com
noun Slang.
  1. a stupid, foolish, or scatterbrained person.
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Origin of birdbrain

First recorded in 1920–25; bird + brain
Related formsbird·brained, bird-brained, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

wackyhalf-bakedkookyzanydumbmoronicgiddycapriciousunstablewitlessidioticill-conceivedinsanefoolhardycrazysillyfoolishilliterateuninformednaive