One with liberal views, supporting individual liberty (see Wikipedia's article on Liberalism).
Someone left-wing; one with a left-wing ideology.
A supporter of any of several liberal parties.
One who favors individual voting rights, human and civil rights, and laissez-faire markets (also called "classical liberal"; compare libertarian).
(now rare outside set phrases) Pertaining to those arts and sciences the study of which is considered to provide general knowledge, as opposed to vocational/occupational, technical or mechanical training.
1983, David Leslie Wagner, The Seven liberal arts in the Middle Ages
Generous; willing to give unsparingly.
He was liberal with his compliments.
Ample, abundant; generous in quantity.
Add a liberal sprinkling of salt.
Unrestrained, licentious.
Widely open to new ideas, willing to depart from established opinions or conventions; permissive.
Her parents had liberal ideas about child-rearing.
Open to political or social changes and reforms associated with either classical or modern liberalism.