libertine

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. One who acts without moral restraint; a dissolute person.
2. n. One who defies established religious precepts; a freethinker.
3. adj. Morally unrestrained; dissolute.

Century Dictionary and Cyclopedia

1. n. In Roman history, a freedman; a person manumitted or set free from legal servitude.
2. n. A member of a Jewish synagogue mentioned in Acts vi. 9, probably composed of descendants of Jewish freedmen who had been expelled from Rome by Tiberius, and had returned to Palestine.
3. n. A freeman of an incorporate town or city.
4. n. One who is free from or does not submit to restraint; one who is free in thought and action.
5. n. One who holds loose views with regard to the laws of religion or morality; an irreligious person; a free-thinker.
6. n. [capitalized] A member of a pantheistic, antinomian sect which existed about 1530 in France and neighboring countries. The Libertines maintained that God alone exists, and that there is no distinction between right and wrong, since man, in obeying his own impulses, obeys God, who is in him, and consequently can never commit sin. The sect became grossly sensual, and finally disappeared.
7. n. A man given to the indulgence of lust; one who leads a dissolute, licentious life; a rake; a debauchee.
8. Free; unrestrained.
9. Licentious; dissolute; not under the restraint of or in accord with law or religion: as, libertine principles.
10. n. At Aberdeen University, a free scholar; one who has no bursary. See bursary, 2.

Wiktionary

1. n. historical Someone freed from slavery in Ancient Rome; a freedman.
2. n. One who is freethinking in religious matters.
3. n. Someone (especially a man) who takes no notice of moral laws, especially those involving sexual propriety; someone loose in morals; a pleasure-seeker.
4. adj. Dissolute, licentious, profligate; loose in morals.

GNU Webster's 1913

1. n. (Rom. Antiq.) A manumitted slave; a freedman; also, the son of a freedman.
2. n. (Eccl. Hist.) One of a sect of Anabaptists, in the fifteenth and early part of the sixteenth century, who rejected many of the customs and decencies of life, and advocated a community of goods and of women.
3. n. One free from restraint; one who acts according to his impulses and desires; now, specifically, one who gives rein to lust; a rake; a debauchee.
4. n. Obsolescent A defamatory name for a freethinker.
5. adj. obsolete Free from restraint; uncontrolled.
6. adj. Dissolute; licentious; profligate; loose in morals.

WordNet 3.0

1. adj. unrestrained by convention or morality
2. n. a dissolute person; usually a man who is morally unrestrained