Correct Answer: rude

Solution : The correct option is the second option.

Explanation:
Suave means sophisticated, charming, and elegant. Its antonym, rude, denotes a lack of politeness or refinement, making it the opposite of suave.

The meanings of the other options are as follows:

• Brisk denotes quick, energetic, or lively.
• Charming denotes pleasant, attractive, or delightful.
• Polite denotes courteous or well-mannered.

Therefore, the correct answer is rude.