Synonyms of improvised

improvised 1 of 2

adjective

as in impromptu

made or done without previous thought or preparation

stumbled through an improvised reply to an unexpected question at the press conference

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

improvised

2 of 2

verb

past tense of improvise

as in devised

to perform, make, or do without preparation

since the award was a complete surprise, I improvised an acceptance speech

Synonyms & Similar Words

• devised
• concocted
• extemporized
• faked
• ad-libbed
• manufactured
• clapped (together or up)
• invented
• hatched
• thought (up)
• contrived
• cooked (up)
• fabricated
• dashed (off)
• made up
• cobbled (together or up)

Antonyms & Near Antonyms

• prepared
• arranged
• laid
• considered
• studied
• contemplated
• readied
• practiced
• exercised
• pondered
• rehearsed

Example Sentences

Recent Examples of improvised

Adjective

That's enough to loosen steep slopes where some of the 210,000 islanders live off the grid in improvised housing. — ABC News, 16 Aug. 2026

Forecasters warn that up to 25 inches of rain and powerful winds could trigger life-threatening flooding, mudslides and even wildfires, especially in remote communities where many residents live off the grid in improvised housing. — Jennifer Sinco Kelleher, Los Angeles Times, 15 Aug. 2026

The idea of full abolition—beloved by both leaders but not part of the Reykjavik agenda—was an improvised moment, almost an accident, and not some premeditated masterstroke (as the movie implies) by Reagan. — Tom Nichols, The Atlantic, 14 Aug. 2026

It is supposed to almost feel improvised and documentary-like. — Sophie Monks Kaufman, IndieWire, 12 Aug. 2026

Likewise, the respite afforded by the twin hydration breaks has also reduced the need for improvised periods of gentlemanly repose, which in turn has lessened the demand for the chilly spray. — Anthony Crupi, Sportico.com, 17 July 2026

Outside hospitals, temporary shelters and improvised morgues, relatives continue posting photographs and names of missing family members on social media, hoping someone might recognize them or provide information about their fate. — Antonio María Delgado, Miami Herald, 4 July 2026

An improvised rescue operation is searching for survivors after Venezuela’s historic earthquakes. — Hannah Jocelyn, New Yorker, 1 July 2026

The idea was that the actors would sign on and visit a chat room to solicit suggestions for the cast to create improvised comedy scenes. — Kelly Leonard, Forbes.com, 30 June 2026

Verb

The crew also improvised wedding attire and accessories using items from the plane. — Kelly McGreal, FOXNews.com, 25 Aug. 2026

Caught unprepared for chemical warfare and lacking standard-issue gas masks, Allied soldiers improvised by covering their mouths and noses with handkerchiefs or pieces of cloth drenched in water or urine. — Encyclopedia Britannica, 19 Aug. 2026

The father improvised by moving the baby’s crib into the living room and using cardboard and tape to seal the gap in the window. — Destenie Nock, The Conversation, 19 Aug. 2026

A lot of what’s in the film between Cameron and Tova, between Lewis and me, is improvised. — Antonia Blyth, Deadline, 18 Aug. 2026

Often unfurling over the course of entire afternoons and evenings, González’s knotty, hypnotic works typically test the expectations (and patience) of viewers, who are left to figure out what’s improvised and what isn’t. — Alex Greenberger, ARTnews.com, 6 Aug. 2026

Disaster recovery finally becomes a real program For decades, the federal government’s response to providing long-term rebuilding funds in the wake of a disaster has been improvised. — Max Klaver, Miami Herald, 6 Aug. 2026

Growing up in rural Malawi, the Chawingas played with the boys in village pick up matches, using balls improvised from wadded up paper and plastic. — Ryan Lenora Brown, Christian Science Monitor, 6 Aug. 2026

That improvised wartime barrier has outlasted the conflict itself. — Kaif Shaikh, Interesting Engineering, 4 Aug. 2026