If you are mistaken about something, you are wrong about it.
例句
I see I was mistaken about you...我明白我以前错怪你了。You couldn't be more mistaken, Alex. You've utterly misread the situation.亚历克斯,你真是大错特错,你对局势的判断根本不对。
ADJ
(信仰、意见)错误的,不正确的
A mistaken belief or opinion is incorrect.
例句
I had a mistaken view of what was happening.我对当时发生的事情曾有一种错误的认识。...a limited understanding of addiction and mistaken beliefs about how it can be overcome.对上瘾的有限认识和关于如何将其戒除的错误观念
英汉词典释义
adj.
(人)弄错的;理解错误的
You are mistaken if you think he’s clever.如果你认为他聪明, 那你就错了。
英英词典释义
Adjective
1. wrong in e.g. opinion or judgment;
"well-meaning but misguided teachers""a mistaken belief""mistaken identity"
2. arising from error;
"a false assumption""a mistaken view of the situation"