be adrift vs stream

be adrift is not a noun while stream is a noun.

Word	Noun	Adjective	Verb	Adverb
be adrift	No	No	Yes	No
stream	Yes	No	Yes	No

As verbs, stream is a hyponym of be adrift; that is, stream is a word with a more specific, narrower meaning than be adrift:

Other hyponyms of be adrift include waft, tide.

be adrift (noun)	stream (noun)
	the act of flowing or streaming; continuous progression
	a steady flow of a fluid (usually from natural causes)
	dominant course (suggestive of running water) of successive events or ideas
	a natural body of running water flowing on or under the earth
	something that resembles a flowing stream in moving continuously

be adrift (verb)	stream (verb)
be in motion due to some air or water current	exude profusely
	flow freely and abundantly
	to extend, wave or float outward, as if in the wind
	move in large numbers
	rain heavily