smells off

• rancidDecomposed fat's quality
• spoiledRuined or overindulged
• sourSharp, biting taste
• putridDecomposed and foul-smelling
• staleNo longer fresh

rotten · funky · musty · fetid · rank · moldy · expired · curdled · decomposing · whiff · nose · sniff · suspicious · questionable · fishy · turned · bad · foul