ad-libbed; ad-libbing
: to deliver spontaneously
: to improvise especially lines or a speech
ad-lib
noun
: spoken, composed, or performed without preparation
1
: in accordance with one's wishes
2
: without restraint or limit
Examples of ad-lib in a Sentence
Verb
had to ad-lib constructing a piñata because she'd never actually seen it being done
Adjective
not bad for an ad-lib comedy routine
Recent Examples on the Web
Andre Gee, Rolling Stone, 24 Oct. 2025
Urban often ad-libs comments when performing the song live.
—Emily Blackwood, PEOPLE, 2 Oct. 2025
Between the ad-libs to start the cut and rapping over drill 808s mixed with Jersey club, Cardi appears to be taking a page out of the Ice Spice playbook.
—Michael Saponara, Billboard, 24 Sep. 2025
Being able to ad-lib was such a steep learning curve for me.
—Patrick Saunders, Denver Post, 6 Apr. 2025
During their jam session with Bad Bunny, the group was able to ad-lib an element unique to their hometown: the tale of Jacinto, a farmer who is dragged by his cow into a ocean blowhole, famously known as Jacinto’s pit cave.
—Andrea Flores, Los Angeles Times, 18 Jan. 2025
First of all, Megan gets to ad-lib every night and comes up with really funny lines every single night.
—Juan A. Ramírez, Vogue, 22 Nov. 2024
But little did Pearson know, Key would one-up these references with an ad-lib.
—Aaron Couch, The Hollywood Reporter, 10 Oct. 2024
According to Patton Oswalt, the cast would ad-lib jokes for Reynolds to say to Blade in Snipes’s absence.
—Jesse David Fox, Vulture, 2 Aug. 2024
Sabrina Park, Harper's BAZAAR, 15 Mar. 2023
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Verb
Recently, Chance The Rapper told DJ Bootleg Kev about Mac playing a vital role in one of his most famous ad-libs, noting that the moment occurred during an LA recording session with Chuck Inglish.
—Andre Gee, Rolling Stone, 24 Oct. 2025
Urban often ad-libs comments when performing the song live.
—Emily Blackwood, PEOPLE, 2 Oct. 2025
Between the ad-libs to start the cut and rapping over drill 808s mixed with Jersey club, Cardi appears to be taking a page out of the Ice Spice playbook.
—Michael Saponara, Billboard, 24 Sep. 2025
Being able to ad-lib was such a steep learning curve for me.
—Patrick Saunders, Denver Post, 6 Apr. 2025
During their jam session with Bad Bunny, the group was able to ad-lib an element unique to their hometown: the tale of Jacinto, a farmer who is dragged by his cow into a ocean blowhole, famously known as Jacinto’s pit cave.
—Andrea Flores, Los Angeles Times, 18 Jan. 2025
First of all, Megan gets to ad-lib every night and comes up with really funny lines every single night.
—Juan A. Ramírez, Vogue, 22 Nov. 2024
But little did Pearson know, Key would one-up these references with an ad-lib.
—Aaron Couch, The Hollywood Reporter, 10 Oct. 2024
According to Patton Oswalt, the cast would ad-lib jokes for Reynolds to say to Blade in Snipes’s absence.
—Jesse David Fox, Vulture, 2 Aug. 2024
Adjective
At the same time, more ad-lib moments are often expected onstage, bound to keep viewers on the edge of their seats.
—Sabrina Park, Harper's BAZAAR, 15 Mar. 2023
Cite this Entry
“Ad-lib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ad-lib. Accessed 30 Oct. 2025.
Copy CitationMedical Definition
ad-lib
1 of 2 adjective
: made or done spontaneously : not controlled by a schedule
ad-lib feeding of animals
ad lib
2 of 2 adverb
: without restraint or imposed limit : as much or as often as is wanted
the animals were given water ad lib—Science
—often used in writing prescriptions
ScienceLove words? Need even more definitions?
Merriam-Webster unabridged
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