| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | ad-lib, extemporaneous |
| Synonyms: | extemporary, extempore, impromptu, improvised, informal, off the cuff, off the hip, off the top of head, spontaneous, spur-of-the-moment, throwaway, unpremeditated, unprepared, unrehearsed, unstudied, without preparation |
| Antonyms: | planned, practiced |
| Main Entry: | off the cuff |
| Part of Speech: | adjective, adverb |
| Definition: | without preparation |
| Synonyms: | ad-lib, by ear, extemporaneously, impromptu, improv, improvised, makeshift, off the hip, off the top of one's head, offhand, spur of the moment, unrehearsed |