Ad lib
Ad lib adverb - Without advance preparation.
Clef
Clef noun - A musical notation written on a staff indicating the pitch of the notes following it.
Mutual synonyms
Cite this Source
Clef and Ad lib. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/ad_lib/clef
Ad lib & Clef. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/ad_lib/clef>.
Clef or Ad lib. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/ad_lib/clef.
Google Ngram Viewer shows how "ad lib" and "clef" have occurred on timeline