a person who always expects good things to happen or things to be successful 乐观的人；乐天派 I'm an eternal optimist—I'm sure things will get better. 我是永远的乐观主义者，我相信情况会好起来的。 He’s an incurable optimist. 他是一个无法治愈的乐观主义者。 Pete, ever the optimist, said things were bound to improve. 一向乐观的皮特说，事情必定是会好转的。
Oxford Collocations Dictionaryadjective- eternal
- incurable
- cockeyed
- …
- ever the optimist