A usurper is someone who wrongfully takes someone else's place. A usurper usually tries to take someone's place on the throne, rather than someone's seat on a bus. ... Usurper is a strong word for someone who has taken or usurped what rightfully belonged to someone else.

What is a usurper person?

: one who usurps something: such as. a : one who seizes and holds office, power, position, etc., by force or without right …

Is usurper a bad word?

The word usurper is a derogatory term, and as such not easily definable, as the person seizing power normally will try to legitimise his position, while denigrating that of his predecessor.