lonesomeUS
Thesaurus: synonyms, antonyms, and examples not with others
aloneYou can tell me your secret - I think we're alone.
(all) on your ownI like living on my own.
on your lonesomeUKSure, you can play the game on your lonesome, but it's more fun with friends.
on your todUKAh, your family's gone and left you on your tod, have they?
unaccompaniedTo everyone's great surprise, she arrived at the ball unaccompanied.
solitaryHe was a solitary child who preferred reading a book to football.