rancid
Concise Oxford English Dictionary © 2008 Oxford University Press:
rancid/ˈransɪd/
▶adjective
- 1 (of foods containing fat or oil) smelling or tasting unpleasant as a result of being stale.
- 2 highly unpleasant; repugnant.
– derivatives
rancidity noun,
rancidly adverb,
rancidness noun.
rancidity noun,
rancidly adverb,
rancidness noun.
– origin C17: from L. rancidus ‘stinking’.
'rancid' also found in these Oxford entries:

