Rattlebrained

adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Foolish
Adjective
  1. 1
    lacking sense or discretion wordnet

Synonyms

All synonyms
scatterbrainedblankbrainlessdizzyemptyempty headed

Etymology

From rattle + brained.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.