Ad lib

Verb

Definition: To deliver spontaneously or without preparation, often used in relation to speaking or performing.

Synonyms: Improvise, Extemporize, Wing it

Antonyms: Plan, Rehearse, Prepare

Examples:

The comedian ad libbed a hilarious joke during his stand-up routine.
He was asked to ad lib a speech at the last minute.

Mnemonics:

'Ad lib' can be remembered as "add liberty" - adding the freedom to improvise.

Etymology:

Origin:

The term "ad lib" originated from the Latin phrase "ad libitum" which means "at one's pleasure."

Historical Usage:

The term has been used since the mid-17th century and is commonly associated with theater and performing arts.

Related Idioms:

Idiom:

"Ad libitum"

Explanation:

This is the original Latin phrase that "ad lib" is derived from. It is used to indicate that something is done freely, according to one's own desire or discretion.

Misconceptions:

Misconception:

Confusing "ad lib" with "improvise" or "extemporize."

Explanation:

While "ad lib" is often used interchangeably with these terms, it specifically refers to the act of delivering spontaneously without previous preparation. "Improvise" and "extemporize" can also imply creating or performing without a script or plan, but they may involve some level of prior thought or practice.