impromptu

Definition (noun): an extemporaneous speech or remark

Example: a witty impromptu must not sound premeditated

Definition (noun): a short musical passage that seems to have been made spontaneously without advance preparation

Definition (adjective): with little or no preparation or forethought

Example: his ad-lib comments showed poor judgment

Definition (adjective): with little or no preparation or forethought

Example: an extemporaneous piano recital

Definition (adjective): with little or no preparation or forethought

Example: an extemporary lecture

Definition (adjective): with little or no preparation or forethought

Example: an extempore skit

Definition (adjective): with little or no preparation or forethought

Example: an impromptu speech

Definition (adjective): with little or no preparation or forethought

Example: offhand excuses

Definition (adjective): with little or no preparation or forethought

Example: trying to sound offhanded and reassuring

Definition (adjective): with little or no preparation or forethought

Example: an off-the-cuff toast

Definition (adjective): with little or no preparation or forethought

Example: a few unrehearsed comments

Definition (adverb): without advance preparation

Example: he spoke ad lib