scatterbrained

Adjective
Synonyms: rattlebrainedrattlepatedscattyflightyflyawayhead-in-the-clouds

WordNet 3.0

Adjective (2)

  1. lacking sense or discretion“his rattlebrained crackpot ideas”“how rattlepated I am! I've forgotten what I came for — Glenway Westcott”Synonyms: rattlebrainedrattlepatedscatty
  2. guided by whim and fancy“flighty young girls”Synonyms: flightyflyawayhead-in-the-clouds
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Webster's Dictionary (GCIDE)

Scatter-brained \Scat"ter-brained`\, a. Giddy; thoughtless. [1913 Webster]
Shatter-brained \Shat"ter-brained`\, Shatter-pated \Shat"ter-pat`ed\, a. Disordered or wandering in intellect; hence, heedless; wild; similar to scatter-brained. --J. Goodman. [1913 Webster +PJC]
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