WordReference Random House Learner's Dictionary of American English © 2017
- characterized by scornful criticism;
mocking bitterly:a sardonic grin.
- characterized by bitter or scornful derision;
sneering:a sardonic grin.
- Greek sardónios of Sardinia) + -an; alluding to a Sardinian plant which when eaten was supposed to produce convulsive laughter ending in death
- Latin sardoni(us) (
- alteration of earlier sardonian (influenced by French sardonique) 1630–40
- biting, mordant, contemptuous.