Meaning of 'ad-lib'

adjective

with little or no preparation or forethought

Example: "Their ad-lib comments showed poor judgment."

Synonyms: impromptu

adjective

said or done without having been planned or written in advance

Example: "The speaker opened with a few ad-lib remarks."

Synonyms: spontaneous unwritten

noun

remark made spontaneously without prior preparation

Example: "The candidates' ad-libs got them in trouble with the politicians."

verb

to perform without preparation

Example: "I ad-libbed the performance."

Synonyms: improvise improvize extemporize extemporise