Dumminess

noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    The quality of being silly or foolish. colloquial, uncountable
  2. 2
    A disease in horses, characterised by immobility and a hanging position of the head, the result of acute encephalitis. archaic, uncountable

Synonyms

All synonyms
hydrops ventriculihydrops ventriculi

Etymology

From dummy + -ness.

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