defaulter vs default

defaulter and default both are nouns.

Word	Noun	Adjective	Verb	Adverb
defaulter	Yes	No	No	No
default	Yes	No	Yes	No

defaulter (noun)	default (noun)
a contestant who forfeits a match	loss due to not showing up
someone who fails to meet a financial obligation	an option that is selected automatically unless an alternative is specified
someone who fails to make a required appearance in court	loss resulting from failure of a debt to be paid
	act of failing to meet a financial obligation

defaulter (verb)	default (verb)
	fail to pay up