adjective.
unprestigious
un·pres·ti·gious
(of a person) strong, imposing, or impressive
"an unprestigious figure during his lifetime"```
(https://l.thisworddoesnotexist.com/u749)Hmm. I think it might need some more work. I mean, there's a strong argument that unprestigious is not a word, but if it was, that certainly would not be the meaning.