adj.有害的；adj.恶毒的,
Merriam-Webster Online Dictionary
malignant (adjective)1.
a) obsolete - malcontent disaffected
b) evil in nature, influence, or effect - injurious
c) passionately and relentlessly malevolent aggressively - malicious
2.
tending to produce death or deterioration - malignant malaria , especially tending to infiltrate, metastasize, and terminate fatally - a malignant tumor
Merriam-Webster Online Thesaurus
malignant (adjective)having or showing a desire to cause someone pain or suffering for the sheer enjoyment of it
SYNONYMS:
bad, bitchy, catty, cruel, despiteful, malevolent, malicious, malign, malignant, mean, nasty, spiteful, vicious, virulentRELATED WORDS:
devious, scoundrelly, scurvy, snakelike; acrimonious, bitter, envious, jaundiced, jealous, rancorous, resentful, vindictive, vitriolic; contemptuous, deprecating, derogatory, disdainful, disparaging, mean-spirited, obnoxious, opprobrious, scornful, snide, snotty, unkind, unkindly, unloving; baleful, baneful, evil; harsh, hostile, inimical; acrid, caustic, poisonous, scathing, venomousNEAR ANTONYMS:
compassionate, good, good-hearted, kind, kindhearted, kindly, sympathetic, warm, warmhearted; affable, agreeable, amiable, cordial, friendly, genial, gracious, nice, pleasant; affectionate, amorous, sweet, tender, tenderhearted; humane; altruistic, high-minded, humanitarian, magnanimous, noble, philanthropic ( philanthropical)