/ ləˈsɪviəs; NAmE / adjective
( formal , disapproving ) feeling or showing strong sexual desire :
a lascivious person
lascivious thoughts
► la·scivi·ous·ly adverb
► la·scivi·ous·ness noun [ U ]
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WORD ORIGIN
late Middle English : from late Latin lasciviosus , from Latin lascivia lustfulness, from lascivus lustful, wanton.