Alone
All alone
Synonyms All alone, lone, single, unattended, partnerless, solus, solo, solitary, unescorted, unchaperoned, and companionless.
Lonely
Synonyms Lonely, solitary, abandoned, forlorn, desolate, isolated, deserted, forsaken, and friendless.
By oneself
Synonyms By oneself, solo, without an escort, on one's tod, on one's jack, on one's pat, on one's own, singly, solus, on one's lonesome, on one's Jack Jones, and on one's Pat Malone.
Without help
Synonyms Without help, by one's own efforts, independently, solo, all alone, on one's own initiative, without assistance, under one's own steam, single-handedly, on one's own, and off one's own bat.
Only
Example Sentences
She felt alone in crowd.
He prefers to work alone.
Alone, she found inner peace.
I enjoy being alone sometimes.