Synonyms of extemporaneous

extemporaneous

adjective

(ˌ)ek-ˌstem-pə-ˈrā-nē-əs 

as in impromptu

made or done without previous thought or preparation

caught by surprise, I had to make an extemporaneous speech at the awards banquet

Synonyms & Similar Words

• impromptu
• improvisational
• improvised
• extempore
• extemporary
• unrehearsed
• spur-of-the-moment
• unprepared
• off-the-cuff
• unstudied
• unpremeditated
• offhand
• unplanned
• spontaneous
• unconsidered
• informal
• ad hoc
• unauthorized
• ad-lib
• offhanded
• automatic
• unscripted
• snap
• down and dirty
• impulsive
• instinctive
• cursive
• involuntary
• casual
• ill-advised
• half-baked
• half-cocked

Antonyms & Near Antonyms

• prepared
• rehearsed
• premeditated
• planned
• intentional
• deliberate
• considered
• intended
• premeditative

Examples Sentences

Recent Examples of extemporaneous

His extemporaneous comments in the wake of the verdict in the George Zimmerman trial are another example. —Jonathan Holloway, Foreign Affairs, 26 Jan. 2014

Hochul, a Democrat, made the extemporaneous comment Monday while being interviewed at a large business conference in California to discuss expanding economic opportunities in artificial intelligence for low-income communities. —Anthony Izaguirre, Fortune, 7 May 2024

Biden used to be capable of extemporaneous belligerence. —Charles C. W. Cooke, National Review, 12 Feb. 2024

Some of that joy derives from spontaneous collaboration—think of the extemporaneous ball passing of the recent Golden State Warriors dynasty, or of the San Antonio Spurs a decade ago, or the Lakers and Celtics a couple of decades before that. —Louisa Thomas, The New Yorker, 29 Dec. 2023

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