What does 恶性 (èxìng) mean in English?

Card 666HSK Level 4666/3571
CARD666
PROGRESS19%
恶性
惡性
èxìng
vicious; malignant(Adjective)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d