at one's own risk
• used to indicate that if harm befalls a person or their possessions through their actions, it is their own responsibility.
• "they undertook the adventure at their own risk"
on one's own
• unaccompanied by others; alone or unaided.
• "she's not here now and I have to do things on my own"
Similar:
alone,
all alone,
(all) by oneself,
in a solitary state,
single,
solitary,
unaccompanied,
companionless,
partnerless,
unattended,
unescorted,
unchaperoned,
solo,
by one's lonesome,
on one's tod,
on one's lonesome,
on one's jack,
on one's Jack Jones,
unaided,
unassisted,
without help,
without assistance,
(all) alone,
by one's own efforts,
under one's own steam,
independently,
single-handed(ly),
standing on one's own two feet,
off one's own bat,
on one's own initiative,
Opposite:
in company,
jointly,
with help,
