What does mordacious mean?
Mordacious means biting, caustic, or sharply satirical. It is used primarily of remarks, criticism, writing, and humour that reveal flaws through pointed or witty language. The word suggests a deliberate verbal edge: a mordacious comment may be severe, but it is often memorable and intellectually incisive rather than merely rude. In literary and formal contexts, “mordacious wit” suggests humour that exposes pretension or folly through sharp observation. Although the word ultimately evokes biting, it is now used mainly figuratively and is not generally applied to animals or physical acts of biting. Mordacious is less common than caustic, mordant, or sarcastic, and its elevated register makes it especially effective in literary criticism, journalism, and formal discussion of satirical speech. Its unusual sound and close relationship to the Latin root associated with biting also make it a memorable word for describing language that cuts to the point.
adjectiveGiven to biting or making sharply satirical remarks. Characterized by a caustic, often witty tone.
- Biting or sharply critical, especially in a witty or satirical way.
"Her mordacious review exposed the film's pretensions with startling precision."
"The newspaper published a mordacious attack on the politician's latest proposal."
"His mordacious humour made even the most sensitive subjects safe to discuss."
Mordacious comes from a Roman word meaning “biting,” so even its figurative sense carries the force of a sharp bite.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mordacious come from?
Mordacious was formed from a Latin stem associated with mordax, mordacis, meaning “biting” or “given to biting,” together with the English suffix -acious. The word entered English in the 17th century and was used both literally and figuratively for sharp or biting language. It belongs to the same broad Latin family as mordant and mordacity, while more distant relatives include the musical term mordent and the noun remord.
Related word forms
How mordacious is actually used
This is a formal and literary word, used especially of criticism, wit, writing, and remarks that are deliberately sharp or satirical. It sounds more pointed and literary than the everyday adjective “sharp.”