sarcastic

Etymology

adj

1. Containing sarcasm.
   a sarcastic quip
   the teacher's sarcastic tone
   The sarcastic bitterness of his conversation disgusted those who were more inclined to accuse his licentiousness than their own degeneracy, and who were unable to conceive the strength of those emotions which are concealed by the jests of the wretched, and by the follies of the wise. 1850, Thomas Babington Macaulay, Machiavelli
2. (of a person) Having the personality trait of expressing sarcasm.
   Her eyes slanted a little... and were sometimes full of fiery determination and sometimes dull and opaque. Her expression was never altogether amiable; was often, indeed, distinctly sullen, or, when she was animated, sarcastic. 1912, Willa Cather, The Bohemian Girl