Self-possessed is a related term of alienated.
As adjectives the difference between self-possessed and alienated
is that self-possessed is in full control of one's faculties, and having a firm belief in one's abilities; confident, assured and poised while alienated is isolated; excluded; estranged.
As a verb alienated is
(alienate).
self-possessed
English
Adjective
in full control of one's faculties, and having a firm belief in one's abilities; confident, assured and poised
alienated
English
Derived terms
* alienatedly
Verb
(head)
(alienate)