failure vs unsuccessful person

failure and unsuccessful person both are nouns.

Word	Noun	Adjective	Verb	Adverb
failure	Yes	No	No	No
unsuccessful person	Yes	No	No	No

As nouns, failure and unsuccessful person are synonyms defined as:

failure and unsuccessful person: a person with a record of failing; someone who loses consistently

Other synonyms of failure include loser, nonstarter.

failure (noun)	unsuccessful person (noun)
an act that fails	a person with a record of failing; someone who loses consistently
an unexpected omission
an event that does not accomplish its intended purpose
a person with a record of failing; someone who loses consistently
lack of success
loss of ability to function normally
inability to discharge all your debts as they come due