loser vs unfortunate person

loser and unfortunate person both are nouns.

Word	Noun	Adjective	Verb	Adverb
loser	Yes	No	No	No
unfortunate person	Yes	No	No	No

As nouns, unfortunate person is a hypernym of loser; that is, unfortunate person is a word with a broader meaning than loser:

Other hypernyms of loser include unfortunate.

loser (noun)	unfortunate person (noun)
a gambler who loses a bet	a person who suffers misfortune
a contestant who loses the contest
a person with a record of failing; someone who loses consistently