idealist
noun /aɪˈdiːəlɪst/
/aɪˈdiːəlɪst/
- a person who believes that a perfect life, situation, etc. can be achieved, even when this is not very likely
- He's too much of an idealist for this government.
- (philosophy) a person who believes in the theory of idealism (= the belief that our ideas are the only things that are real and that we can know about)