monstrous

Synonyms: aberrant abnormal atrocious cruel desperate devilish diabolical disgraceful dreadful egregious evil fiendish flagitious foul freakish frightful grotesque gruesome heinous hellish hideous horrendous horrible horrifying infamous inhuman intolerable loathsome macabre miscreated morbid obscene odious ominous outrageous preposterous rank satanic scandalous teratoid terrible uncanny unusual vicious villainous

Antonyms: average common expected natural ordinary standard

Synonyms: colossal cracking elephantine enormous fantastic gargantuan giant gigantic grandiose great huge immense impressive magnificent mammoth massive monumental prodigious stupendous titanic towering tremendous vast whopping

Antonyms: little miniature small tiny