alienate vs drift away

alienate and drift away both are verbs.

Word	Noun	Adjective	Verb	Adverb
alienate	No	No	Yes	No
drift away	No	No	Yes	No

As verbs, drift away is a hyponym of alienate; that is, drift away is a word with a more specific, narrower meaning than alienate:

alienate: arouse hostility or indifference in where there had formerly been love, affection, or friendliness
drift away: lose personal contact over time

Other hyponyms of alienate include drift apart, wean.

alienate (verb)	drift away (verb)
arouse hostility or indifference in where there had formerly been love, affection, or friendliness	lose personal contact over time
make withdrawn or isolated or emotionally dissociated
transfer property or ownership