vagaryEnglishOxford English Thesaurusvagary noun the vagaries of the weather: quirk, idiosyncrasy, peculiarity, oddity, eccentricity, unpredictability, fluctuation, foible, whim, whimsy, notion, conceit, caprice, fancy, kink, crotchet; informal hang-up, thing; rare megrim, singularity.vagary Oxford Dictionary of English