in vain
• without success or a result.
• "they waited in vain for a response"
Similar:
unsuccessfully,
vainly,
without success,
to no avail,
to no purpose,
ineffectually,
with no result,
fruitlessly,
profitlessly,
unproductively,
futile,
useless,
pointless,
worthless,
nugatory,
ineffective,
ineffectual,
inefficacious,
impotent,
powerless,
unavailing,
fruitless,
profitless,
unproductive,
unsuccessful,
abortive,
thwarted,
balked,
frustrated,
foiled,
bootless,
