calumnious

causing or intended to cause unjust injury to a person's good name a calumnious campaign ad that went well beyond the negativity to which voters had become so richly accustomed Synonyms libelous, defamatory, scandalous, slanderousRelated Words erroneous, false, inaccurate, incorrect, inexact, invalid, off, unsound, untrue, wrong; denigrative, denigratory, depreciative, depreciatory, derogatory, detractive, disparaging, uncomplimentary, unfavorable, unflattering; invidious, objectionable; maligning, traducing, vilifying; hateful, malevolent, malicious, spitefulNear Antonyms appreciative, complimentary, favorable; adulatory, commendatory, eulogistic, hagiographic (also hagiographical), laudatory; accurate, correct, errorless, factual, right, sound, true, valid