noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   malignancy countable, uncountable
2. 2
   quality of being disposed to evil; intense ill will wordnet
3. 3
   (medicine) a malignant state; progressive and resistant to treatment and tending to cause death wordnet

Synonyms

All synonyms

cussednessdevilmentdevilryfatalityharmfulnesslethality

Etymology

From malignant + -ance or Latin malignantia.

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