Abrupt and Ad lib

Abrupt adjective - Being or characterized by direct, brief, and potentially rude speech or manner.

Ad lib and abrupt are semantically related In some cases you can replace phrase "Ad lib" with "Abrupt", this terms are similar.

Nearby Words: abruptly, abruptness, abruption

Ad lib adverb - Without advance preparation.

Abrupt and ad lib are semantically related in tending to act without thought topic. Sometimes you can use "Abrupt" instead an adjective phrase "Ad lib".