Madbrain

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A rash, hotheaded or crazy person. archaic

Synonyms

All synonyms
adventureradventuressadventurousaudaciousbolddaredevil

Etymology

From mad + brain.

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