n. 1 monstrosity, monster, mutant, deformity The show features freaks such as a two-headed calf and a bearded lady 2 anomaly, rarity, abnormality, irregularity, oddity, curiosity, rara avis, rare bird, Brit one-off, Colloq one-shot Biologists regard the albino giraffe as a freak of nature 3 whim, caprice, vagary, crotchet, quirk, eccentricity, fancy, idiosyncrasy, peculiarity The snow in New York in July was a freak 4 enthusiast, fan, devotee, aficionado; fanatic, addict; Colloq buff, fiend, nut She's been a jazz freak for years
adj. 5 freakish, freaky, abnormal, anomalous, extraordinary, unique, rare, atypical, unusual, odd, queer, strange, exceptional, bizarre, weird, unparalleled, unforeseen, unexpected, unpredicted, unpredictable, Brit one-off, Colloq one-shot He claims he had a freak experience with a lion that had a thorn in its foot