has-been
🇺🇸
/ˈhæz bɪn/
🇬🇧
/ˈhæz biːn/
Someone who was once famous or successful but is no longer.
He considers himself a political expert, but many see him as just a has-been.
彼は自分を政治の専門家だと考えていて、しかし多くの人々は彼を単に時代遅れだと見ています。