rancid

Synonyms: bad carious contaminated curdled decomposing disagreeable disgusting evil-smelling feculent fetid foul frowzy fusty gamy high impure loathsome malodorous moldy musty nasty nidorous noisome noxious off offensive olid polluted putrefactive putrefied putrescent putrid rank reeky repulsive sharp smelly sour soured stale stinking strong tainted turned unhealthy whiffy

Antonyms: perfumed sweet