Lustful typically implies strong sexual desire and can be inappropriate in formal or polite situations. His lustful stare at the beach was frowned upon.
Pro Tip 2/3
Not Always Physical
While often sexual, lustful can describe a deep craving for non-physical things, like power. Her eyes showed a lustful hunger for success.
Pro Tip 3/3
Negative Implication
Using 'lustful' may carry negative judgments, suggesting excess or immorality. The novel portrayed the antagonist as a lustful villain.