drifter vs sundowner

drifter and sundowner both are nouns.

Word	Noun	Adjective	Verb	Adverb
drifter	Yes	No	No	No
sundowner	Yes	No	No	No

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

drifter: a wanderer who has no established residence or visible means of support
sundowner: a tramp who habitually arrives at sundown

Other hyponyms of drifter include beachcomber, bum, hobo, tramp.

drifter (noun)	sundowner (noun)
a wanderer who has no established residence or visible means of support	a drink taken at sundown
	a tramp who habitually arrives at sundown