Ad Lib Definition

ăd lĭb
ad-libbed, ad-libbing, ad-libs
adverb
In an unrestrained manner; spontaneously.
American Heritage
Wiktionary

At will.

Wiktionary
To whatever extent.
Wiktionary
Wiktionary
Antonyms:
verb
ad-libbed, ad-libbing, ad-libs
To improvise and deliver extemporaneously.
Ad-lib a comic monologue.
American Heritage
To improvise (words, gestures, etc. not in a prepared speech, script, etc.); extemporize.
Webster's New World
To engage in improvisation, as during delivery of a speech.
American Heritage

Alternative spelling of ad-lib.

Wiktionary

To perform without script.

Wiktionary
Synonyms:
Antonyms:
noun
ad-libs
Words, music, or actions uttered, performed, or carried out extemporaneously.
American Heritage
The act of ad-libbing or an ad-libbed remark.
Webster's New World

Alternative spelling of ad-lib.

Wiktionary
adjective
Uttered, performed, or carried out spontaneously.
Heckled the speaker with ad-lib comments.
American Heritage
Spoken or done extemporaneously.
Webster's New World
Antonyms:
abbreviation
Ad libitum.
Webster's New World
As needed.
Webster's New World

Other Word Forms of Ad Lib

Noun

Singular:
ad lib
Plural:
ad-libs

Origin of Ad Lib

  • abbreviation of ad libitum, from New Latin ad libitum.

    From Wiktionary

  • Short for ad libitum

    From American Heritage Dictionary of the English Language, 5th Edition

  • From ad lib.

    From Wiktionary

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