Synonyms for alone:
self, forlorn, shut off, unilateral, solitarily, abandoned, unconnected, unmatched, Companionless, single-handedly, bereft, unaided, aside, single-handed, adrift, stray, unassisted, estranged, privately.
home alone, incommunicado.
Other synonyms and related words:
odd, singular, single-handed, totally, uncomparable, altogether, friendless, just, but, incomparable, peerless, individually, only, remote, whole, solely, unexampled, insular, unaided, only if, Companionless, entirely, unequalled, severally, apart, abandoned, simply, personally, unfrequented, nongregarious, unconnected, estranged, removed, nonpareil, solitarily, singly, forlorn, adrift, exclusive, completely, solo, one, matchless, bare, exclusively, unrivaled, unilateral, desolate, purely, all, bereft, unequaled, merely, unassisted, wholly, unsupported, one-off, unaccompanied, nonsocial, unique, unsocial, unmatched, special, aside, single-handedly, individual, shut off, privately, only when, per se, sole, lonesome, unparalleled.
Extradited, hermitic, lonely, Eliminated, cloistered, Ejected, alienated, closeted, separated, maverick, solitary, xenophobic, Blackballed, secluded, sequestered, anonymous, detached, Exiled, outcast, Disbarred, cordoned, confined, Extirpated, Excommunicated, antisocial, segregated, Excluded, Ostracized, misanthropic, isolated, Banished, reclusive, Expatriated, blacklisted, aloof, boycott, Deported.
separate; apart (adjective)
to the exclusion of; unique (adjective)
per se (adverb)