Dictionary

1ad–lib

verb \ˈad-ˈlib\

: to make up words or music in a performance instead of saying or playing something that has been planned

ad–libbedad–lib·bing

Full Definition of AD-LIB

transitive verb
:  to deliver spontaneously
intransitive verb
:  to improvise especially lines or a speech
ad–lib noun
ADVERTISEMENT

Origin of AD-LIB

ad lib
First Known Use: 1919

2ad–lib

adjective
AD-LIBBED Defined for Kids

ad–lib

verb \ˈad-ˈlib\
ad–libbedad–lib·bing

Definition of AD-LIB for Kids

:  to make up something and especially music or spoken lines during a performance :  improvise
Medical Dictionary

ad–lib

adjective \(ˈ)ad-ˈlib\

Medical Definition of AD–LIB

:  made or done spontaneously :  not controlled by a schedule <ad–lib feeding of animals>

Browse

Next Word in the Dictionary: ad libPrevious Word in the Dictionary: adlessAll Words Near: ad-lib
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears