[ad-lib] vb ad-libbed ; ad-lib.bing [ad lib] vt (1919): to deliver spontaneously ~ vi: to improvise esp. lines or a speech -- ad-lib n
[2]ad-lib adj (1935): spoken, composed, or performed without preparation
[ad-lib] vb ad-libbed ; ad-lib.bing [ad lib] vt (1919): to deliver spontaneously ~ vi: to improvise esp. lines or a speech -- ad-lib n
[2]ad-lib adj (1935): spoken, composed, or performed without preparation
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012