unlucky person; person with bad karma
Refers to someone who seems to be dogged by misfortune, often with a nuance of karmic retribution. Can be used sympathetically or critically.
He's really an unlucky person; nothing he does goes well.
I don't want to be seen as a person with bad karma, so I'm making an effort.
不運 simply means 'bad luck' or 'misfortune' and is a general term, whereas 因果者 carries a stronger connotation of karmic destiny or a person fated to be unlucky.
A compound of 因果, “karma; cause and effect,” and 者 read もの, “person,” denoting someone burdened by unfortunate karma.