Translation guide
How to express 'ad-lib' in Japanese, covering improvisation in speech, performance, and music.
ad-lib (improvise speech)
ad-lib (improvise music)
To speak or perform without preparation, making it up on the spot.
The most direct and common way to say 'speak ad-lib'. Uses the loanword アドリブ.
He gave the speech ad-lib.
A more formal or literary way to say 'speak impromptu'. 即興 means improvisation.
The loanword used as a noun, meaning an ad-libbed line or action. Very common in entertainment contexts.
Means doing something without rehearsal, 'winging it'. Casual and often used for performances or presentations.
To create or perform music spontaneously, without a fixed score.
Standard way to say 'play ad-lib' in music. アドリブ is widely understood.
In jazz, they often play ad-lib.
More formal term for musical improvisation. Often used in classical or academic contexts.
Short for improvisation, used among musicians. Casual and somewhat niche.
There's an improv session tonight.
Referring to a specific ad-libbed line or action in a performance.
There is no single Japanese verb that directly translates 'to ad-lib'. Use アドリブで〜する or 即興で〜する with the appropriate verb (話す, 演奏する, やる, etc.).
アドリブ is more common in everyday speech and entertainment. 即興 is slightly more formal and often used in written language or serious arts contexts.
She gave a wonderful impromptu speech.
その俳優はアドリブが上手い。
That actor is good at ad-libbing.
We did it without rehearsal, just ad-libbed.
He improvised on the piano.
彼の即興は観客を笑わせた。
His improvisation made the audience laugh.