to improvise and deliver without preparation (a speech, musical performance, etc)
adjective(ad lib when predicative)
2.
improvised; impromptu
adverbad lib
3.
without restraint; freely
4. music short for ad libitum
noun
5.
an improvised performance, often humorous
Derived forms
ad-libber (ad-ˈlibber)
noun
Word origin
C18: short for Latin ad libitum, literally: according to pleasure
Examples of 'ad-libbed' in a sentence
ad-libbed
It is 80 per cent ad-libbed.
The Sun (2015)
Actors often ad-libbed, and productions were rushed.
2019, 'For 70 Years, the Soap Opera Has Shaped American Pop Culture', Smithsonianhttps://www.smithsonianmag.com/arts-culture/for-70-years-soap-opera-shaped-american-pop-culture-180971439/
The programme is unusually reliant on ad-libbed two-ways.
Times, Sunday Times (2016)
Peace signs were flashed and heartfelt entreaties were ad-libbed.
Globe and Mail (2003)
Like all of his catchphrases, it was ad-libbed, not scripted.
The Sun (2017)
It's brilliantly written and has the feel of something very loose and ad-libbed.
The Sun (2013)
He ad-libbed in many of his films and was just as quick in person.
Globe and Mail (2014)
Bean has written direct address into the script, which the partly ad-libbed interactions enrich.
The Times Literary Supplement (2014)
And it is their scripts that give the flourishes of supposedly ad-libbed quips and catchphrases.