Alone...

ALONE:companionless, desolate, detached, individual, in solitary, isolated, lone, lonely, lonesome, onliest, only, on one’s own, single, sole, solitary, solo, stag, unaccompanied, unaided, unassisted, unattached, unattended, unescorted, unmarriedExhausted, mentally, physically, emotionally, exhausted from being...Alone.