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

Idealist means a person who holds high ideals.

• Correct answer - person having high ideals: it has the same meaning as Idealist.
• problem solver: a person who finds solutions - wrong, it does not mean the same as Idealist.
• achiever: a person who succeeds - wrong, it does not mean the same as Idealist.
• enthusiast: a person who is very keen on something - wrong, it does not mean the same as Idealist.