ad-libs; ad-libbed; ad-libbing
: to make up words or music in a performance instead of saying or playing something that has been planned : improvise
The actor forgot his lines, so he ad-libbed.
a comedian who is admired for his ability to ad-lib
The actor ad-libbed his lines.
She ad-libbed the guitar solo.
ad-lib a joke
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“Ad-lib.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/ad-lib. Accessed 15 Apr. 2026.
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