adj. 25B6; adjective a malign influence : HARMFUL, evil, bad, baleful, hostile, inimical, destructive, malignant, injurious; poetic/literary malefic, maleficent.
beneficial.
25B6; verb he maligned an innocent man : DEFAME, slander, libel, blacken someone's name/character, smear, vilify, speak ill of, cast aspersions on, run down, traduce, denigrate, disparage, slur, abuse, revile; informal bad-mouth, knock; Brit. informal rubbish, slag off; formal derogate, calumniate; rare asperse.
praise.