Malignant

//məˈlɪɡnənt// adj, noun

Definitions

Adjective
  1. 1
    Harmful, malevolent, injurious.

    "malignant temper; malignant revenge; malignant infection"

  2. 2
    Tending to produce death; threatening a fatal issue.

    "malignant diphtheria"

Adjective
  1. 1
    dangerous to health; characterized by progressive and uncontrolled growth (especially of a tumor) wordnet
Noun
  1. 1
    A deviant; a person who is hostile or destructive to society.

    "As devout Stephen was carried to his burial by devout men, so is it just and equal that malignants should carry malignants […]"

  2. 2
    A person who fought for Charles I in the English Civil War. derogatory, historical, obsolete

Etymology

Etymology 1

From Middle French malignant, from Late Latin malignans. See malign.

Etymology 2

From Middle French malignant, from Late Latin malignans. See malign.

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