nonstarter vs washout

nonstarter and washout both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonstarter	Yes	No	No	No
washout	Yes	No	No	No

As nouns, washout is a hyponym of nonstarter; that is, washout is a word with a more specific, narrower meaning than nonstarter:

nonstarter: a person with a record of failing; someone who loses consistently
washout: someone who is unsuccessful

Other hyponyms of nonstarter include bankrupt, insolvent, flash in the pan, dud, flop, underdog.

nonstarter (noun)	washout (noun)
a horse that fails to run in a race for which it has been entered	someone who is unsuccessful
a person with a record of failing; someone who loses consistently	the erosive process of washing away soil or gravel by water (as from a roadway)
	the channel or break produced by erosion of relatively soft soil by water