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

In Russia and Ukraine, soldiers have learned to protect their tanks from drone strikes using improvised nets and boxes, which cover the vehicles like a turtle shell. —Simon Shuster, The Atlantic, 27 Mar. 2026

Last year, British electronic producer Actress and modular synthesis pioneer Suzanne Ciani performed an improvised piece titled Concrète Waves at the Barbican in London and Barcelona’s Sónar Festival. —Walden Green, Pitchfork, 27 Mar. 2026

Just south of downtown San Jose, about 100 people live on the banks of Coyote Creek, where footpaths and improvised bridges connect a community of tents and wooden shacks — the city’s last sprawling homeless encampment. —Grant Stringer, Mercury News, 26 Mar. 2026

But military experts said Iran may have used its space launch vehicle for an improvised firing. —Arkansas Online, 22 Mar. 2026

There was a clash with counter-protesters and two Muslim men from Pennsylvania allegedly threw improvised explosive devices. —Brian Mann, NPR, 18 Mar. 2026

That was not an improvised response. —Judah Taub, semafor.com, 18 Mar. 2026

Instead, the images shown feature girls and women, all non-actresses, caught in private moments inside their homes and in ordinary life, mixed with improvised scenes in a school, as well as landscape and observational scenes. —Georg Szalai, HollywoodReporter, 11 Mar. 2026

The bomb, an improvised explosive device (IED), went off Sunday and damaged the entrance to the embassy's consular section. —Louis Casiano, FOXNews.com, 11 Mar. 2026

Verb

The Writers Guild removed Friedkin’s name, which up-set Friedkin, who retaliated by saying in interviews that the movie was largely improvised. —Literary Hub, 25 Mar. 2026

None of the dialogues were improvised. —Marta Balaga, Variety, 21 Mar. 2026

Homes, shops, and temples express individual identities, sometimes clashing, often improvised, yet always alive. —Big Think, 20 Mar. 2026

The group said the district process was not improvised and issues raised in the lawsuit will be resolved on the record. —Nick Wooten, Dallas Morning News, 19 Mar. 2026

Some lyrics are improvised, which may explain why the opening track feels vague. —The Week Us, TheWeek, 18 Mar. 2026

Absent adequate living conditions, many workers improvised, illegally occupying areas outside the city and building themselves shelter with whatever materials were available. —Sophia La Banca, JSTOR Daily, 11 Mar. 2026

All of the dialogue is improvised, even the rant of a school teacher toward the beginning. —Georg Szalai, HollywoodReporter, 11 Mar. 2026

None of that can be improvised. —John Kerry, semafor.com, 10 Mar. 2026