Which of the following words is closest in meaning to “Frivolous”?

Frivolous means not serious; silly.

• Correct answer - foolish: it has the same meaning as Frivolous.
• short tempered: quick to become angry - wrong, it does not mean the same as Frivolous.
• serious: solemn; important - wrong, it does not mean the same as Frivolous.
• sensible: having good sense - wrong, it does not mean the same as Frivolous.