Mordacious

[mawr-dey-shuh s] /mɔrˈdeɪ ʃəs/

adjective
1.
biting or given to biting.
2.
sharp or caustic in style, tone, etc.
/mɔːˈdeɪʃəs/
adjective
1.
sarcastic, caustic, or biting
adj.

“given to biting,” 1640s (originally figurative), from Latin mordac-, stem of mordax, from mordere “to bite,” perhaps from PIE root mer- (2) “to rub, harm” (see smart (v.)). Related: Mordacity.

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