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1. Lacking moral restraint, especially in sexual conduct.
2. Archaic Ignoring accepted rules or standards, as of prescriptive grammar.

[Latin licentiōsus, from licentia, freedom, license; see license.]

li·cen′tious·ly adv.
li·cen′tious·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.licentiously - in a licentious and promiscuous manner; "this young girl has to share a room with her mother who lives promiscuously"
References in classic literature ?
But Pertinax was created emperor against the wishes of the soldiers, who, being accustomed to live licentiously under Commodus, could not endure the honest life to which Pertinax wished to reduce them; thus, having given cause for hatred, to which hatred there was added contempt for his old age, he was overthrown at the very beginning of his administration.
The Founders' understanding of natural rights does not include, under religious free exercise, the liberty to disturb the public peace or act licentiously regardless of whether boundary provisos are textually specified.
The royals feign piety through such activities, which enables them to live licentiously when they escape abroad at their people's great expense.
The Commercial Review of the South and West stated how nowhere in the world the taste for tobacco was so licentiously indulged in as in the United States, adding that no plant had ever attracted as much notice or generated as much excitement as "this disgusting some would say fascinating weed.
Paul describes and just as Moses witnessed when he descended from the mount with the Ten Commandments and found his people worshipping idols and behaving licentiously.