What does cachinnating mean?
To be cachinnating is to laugh loudly, wildly, and without restraint — the kind of laughter that erupts rather than politely titters. The term is the present participle of the verb "cachinnate," which English borrowed from the Latin "cachinnari" in the early modern period. Because it is rare in everyday speech, "cachinnating" belongs chiefly to literary and formal writing, where authors deploy it to describe uproarious mirth with a touch of erudition or deliberate quaintness. Its noun relative, "cachinnation," names the act itself, and both forms share the stage with more common expressions like "guffawing" or "laughing uproariously." What makes the word appealing is its precision: where ordinary language blurs all loud laughter together, "cachinnating" singles out laughter that is immoderate, convulsive, and impossible to suppress. For readers and writers who enjoy vocabulary with classical roots and vivid descriptive power, it offers a memorable alternative to the mundane.
verb (present participle)Laughing loudly and immoderately; the present participle of 'cachinnate', describing unrestrained, raucous laughter.
- Laughing loudly and immoderately; laughing in an unrestrained, boisterous way.
"The comedy troupe left the audience cachinnating in the aisles."
"The stand-up's final punchline had the entire room cachinnating for a full minute."
"He sat in the back row, cachinnating at jokes nobody else found funny."
Cachinnating comes straight from Latin 'cachinnari' — the Romans had a dedicated verb for laughing so hard you can't stop, and English borrowed it in the 17th century.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cachinnating
"Cachinnating" derives from the Latin verb "cachinnare" (infinitive "cachinnari"), which meant to laugh loudly or immoderately; Roman writers used it to describe raucous, uncontrolled laughter. English adopted the verb "cachinnate" during the early modern period, likely in the seventeenth century, as part of the broader influx of Latinate vocabulary into learned prose. Its cognates within English are the derived noun "cachinnation" and the adjective "cachinnatory," all stemming from the same Latin root.
Related word forms
How cachinnating is actually used
"Cachinnating" is rare and distinctly literary or formal in register; it carries a slightly scholarly, even comic-pretentious flavor when used in modern prose. It is the -ing form of the verb "cachinnate," and its noun counterpart is "cachinnation." Writers typically reach for it precisely because it is unusual, lending an archaic or erudite tone to descriptions of loud laughter.
Easily confused with cachinnating
Cannulating means inserting a cannula (a tube) into a body cavity or vessel, whereas cachinnating means laughing loudly; the words share only a superficial sound similarity.