DictionaryrancidSpoiled and foul
adjective

rancid

RAN-sid/ˈrænsɪd/

Having an unpleasant smell or taste from spoiled fats or oils.

The cook recoils from the rancid butter in the dish.

White cook recoils from rancid butter in dish.
Etymology

Latin rancere described being spoiled or rotten, so rancid names the offensive smell or taste of decay. The same verb also underlies rancor, where physical foulness became emotional bitterness.

In context

cithx629:03
microwave. So like all the fumes get infused inside of my food. No wonder it makes sense now. It always had this like like trash kind of taste like this rancid taste.
cleaning my dirty pigsty hoarder stink as room

More examples

  • Keep the oil away from heat so it doesn't turn rancid.
  • Rancid butter gives the cookies an unpleasant taste.
  • These chips taste rancid even though the bag is unopened.

Forms

rancid

rancidity noun — The foul smell or taste of spoiled fats.

Similar words

spoiled
Covers food gone bad generally, not specifically its fats.
stale
Describes lost freshness, not necessarily the spoilage of fats.