Lascivious
/ləˈsɪviəs/
Definition 1 of 1
Pro Tip 1/3Negative Connotation
The term 'lascivious' often implies a judgemental view of someone's sexual behavior as inappropriate or aggressive. 
The movie character's lascivious advances were met with disgust.
Pro Tip 2/3Formal Context
'Lascivious' is formal and used mostly in written English rather than in everyday conversation. 
The novel described the character's lascivious gaze in detail.
Pro Tip 3/3Legal Use
In legal contexts, 'lascivious' can describe something that is offensively sexual and may relate to criminal acts. 
Charged with lascivious conduct, the accused awaited trial.