solus
unidirectionally
single-handedly
singly
apparently
ostensibly
seemingly
solitarily
on the face of it
on one's own
forsakenly
unperceivedly
on one's Pat Malone
one-way
leave someone to their own devices
solitarious
solo
blend in
on one's lonesome
on one's Jack Jones
plough one's own furrow
on one's bill
aimlessly
solivagant
disjunct
lonesomely
absolutely
on one's tod
vagrant
by oneself
on one's lee-lane
hideaway
retreat
blind
solitudinously
unvaryingly
undramatically
detachedly
lonely
lonesome
splitlessly
unobtrusively
tod
exofacially
self-directed
self-deserting
inarticulately
unnavigably
motionlessly
independently