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

Complacent means smugly self-satisfied.

• Correct answer - self-satisfied: it has the same meaning as Complacent.
• enforce: to compel obedience - wrong, it does not mean the same as Complacent.
• disturbed: troubled - wrong, it does not mean the same as Complacent.
• proud: pleased with one's achievements - wrong, it does not mean the same as Complacent.