If you reevaluate something or someone, you consider them again in order to reassess your opinion of them, for example, about how good or bad they are.

What does to re-evaluate mean?

transitive + intransitive. : to evaluate (something or someone) again especially with regard to changes or new information Debts force students to delay marriage, postpone children and reevaluate career choices.—

Should reevaluate have a hyphen?

First, you need a hyphen when you place a prefix onto a capitalized word: anti-American. Second, you need a hyphen to avoid creating a double i or a double a: anti-insect, ultra-active. (But a double e or double o is ok: reevaluate, cooperate.)