MALIG'NITY, noun [Latin malignitas.] Extreme enmity, or evil dispositions of heart towards another; malice without provocation, or malevolence with baseness of heart; deep rooted spite. 1. Virulence; destructive tendency; as the malignity of an ulcer or disease. 2. Extreme evilness of nature; as the malignity of fraud. 3. Extreme sinfulness; enormity or heinousness; as the malignity of sin.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI