UNPRECEDENTED (adjective) Never done or known before. ” the unprecedented growth in the rate of crime has become a stiff challenge to many authorities.” synonyms: unparalleled, unequalled, unmatched, unrivalled
PHENOMENAL remarkable or exceptional, especially exceptionally good. “the standard of living improved at a phenomenal rate” synonyms: exceptional, extraordinary, remarkable
MALICIOUS Adjective. characterized by malice; intending or intended to do harm. “he was found guilty of malicious damage” synonyms: spiteful, malevolent, hostile, bitter, venomous, poisonous, evil-intentioned, ill-natured, evil, baleful, vindictive, vengeful, vitriolic, rancorous, malign, malignant, pernicious, mean, nasty, harmful, hurtful, mischievous, destructive, wounding, cruel, unkind, defamatory.