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to ad-lib

to ad-lib

8 6.8
To say or act without preparation
  • verb
  • /ˈædˌlɪb/
translation icon : improvisar
  • During the play, the actor had to ad-lib when his co-star forgot her lines.
  • ad-libbed a line
  • ad-libbed dialogue
  • just ad-libbed

Or if you're an actor, you know, you shouldn't be ad libbing.

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Examples

  • U2's Bono took it to a new worldwide audience in 1985 when he ad-libbed parts of the lyrics at Live Aid.

    Blog text (9)
  • The last remark was ad libbed, apparently.

    Fiction book (1990)
  • But feel free to ad-lib, OK?

  • I was ad-libbing like mad.

    Fiction book (2001)
  • You know, this is all ad-libbed.

  • Pretty brave kid, coming out here and ad-libbing with me and my three writers.

  • You go out there and you improvise, you ad-lib.

  • Did you know he ad-libbed the "Here's johnny" Line in "The shining"?

  • On Dec 7, 1941, FDR ad-libbed a line.

    Blog text (31)
  • Rick slipped his prepared speech into his program folder and ad-libbed.

    Fiction book (2001)

Synonyms

to improvise
vsto ad-lib
141 4.0

Do something without planning, using what you have

is focused on speaking or performing without prior preparation
to wing it
vsto ad-lib
  • Informal
28 6.1

Do something without planning or preparation and improvise

is often used for quick unscripted lines during a performance
to freestyle
vsto ad-lib
  • Informal
4 4.1

To perform music, dance, or speech without planning and make it up as you go

is used more for general unscripted speaking, not only artistic acts
to improv
vsto ad-lib
  • Informal
3 6.2

To perform without a script, making scenes or music on the spot

is broader, applying to unscripted speech beyond acting or music
to lib
vsto ad-lib
  • Informal
2 9.9

To make something up during a performance when not ready

is similar but can refer to short unscripted comments too
to extemporize
vsto ad-lib
1 9.0

To make or do something without planning

is more casual and used for brief unscripted remarks

Antonyms

103 1.3

Ready to use or do something when needed

How Spontaneous

to wing it
  • Informal
28 6.1
to ad-lib
8 6.8
to read
1.0
to rehearse
131 3.5

Surface Forms

ad-lib infinitive
ad-libbed past
ad-libbed past participle
ad-libbing present participle
ad-libs third person singular

Etymology

Ad-lib comes from the Latin phrase ad libitum, which means 'as you wish' or 'at pleasure'. To ad-lib is to speak or act 'at will' without planning, so you make it up as you go and improvise.