Mouthbreathing

adj, noun, slang

adj, noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    The process of breathing through the mouth. uncountable
Adjective
  1. 1
    unintelligent, especially when not aware of this derogatory, not-comparable, slang

Etymology

From mouth + breathing.

Related phrases

mouth breather

More for "mouthbreathing"

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