Synonyms of improvise

improvise

verb

ˈim-prə-ˌvīz 

as in to devise

to perform, make, or do without preparation

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

Synonyms & Similar Words

• devise
• concoct
• extemporize
• fake
• ad-lib
• manufacture
• clap (together or up)
• invent
• hatch
• contrive
• think (up)
• cook (up)
• fabricate
• make up
• dash (off)
• cobble (together or up)

Antonyms & Near Antonyms

• prepare
• ready
• arrange
• lay
• consider
• study
• practice
• exercise
• contemplate
• ponder
• rehearse

Example Sentences

Recent Examples of improvise

Could these poems have been improvised by singers drawing on a repertoire of formulae? — Literary Hub, 17 July 2026

The afternoon loosens into tapas at Tapeo and whatever the pastry chefs are improvising that week at Bubó. — Condé Nast Traveler, 15 July 2026

But the alternative is to leave frontline clinicians improvising when authenticity is in doubt. — Henry Bair, STAT, 14 July 2026

The goal is to create a space that feels lived-in, not improvised. — Angelika Pokovba, Martha Stewart, 12 July 2026