rancid

adjective

smelling or tasting unpleasant as a result of being old and stale

Wiktionary

Pronunciation: /ˈɹænsɪd/ / /ˈɹeə̯nsɪd/ / /ˈɹɛə̯nsɪd/

adj

Etymology: Etymology tree Latin ranceō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin ranciduslbor. English rancid Learned borrowing from Latin rancidus (“stinking, rank, rancid, offensive”).

Rank in taste or smell.
“The house was deserted, with a rancid half-eaten meal still on the dinner table.”
Offensive. Unpleasant.
“Her remarks were rancid; everyone got up and left.”