Risque (adjective)

1. Involving or bordering on impropriety or indecency.
2. Daring, bold or provocative.

Origin:

From the french word risqué, meaning "risky" or "daring".

Examples:

1. The movie had a few risque scenes.
2. The comedian's act was risque.
3. The dress was risque for the formal event.
4. The advertisement was considered risque by some.
5. The party had a risque theme.