/ ɪˈstreɪndʒd; NAmE / adjective ( formal )
1.
[ usually before noun ] no longer living with your husband or wife :
his estranged wife Emma
2.
estranged (from sb) no longer friendly, loyal or in contact with sb :
He became estranged from his family after the argument.
3.
estranged (from sth) no longer involved in or connected with sth, especially sth that used to be important to you :
She felt estranged from her former existence.
••
WORD ORIGIN
late 15th cent.: from Old French estranger , from Latin extraneare treat as a stranger, from extraneus not belonging to the family, used as a noun to mean stranger. Compare with strange + -ed .