consequence, result, effect, outcome, aftermath, impact, influence, ramification, backwash, fallout, reverberation
failed - fruitless - unproductive - ineffective - futile - abortive - unavailing - thwarted - defeated - unfulfilled - unprofitable - unaccomplished - unachieved - uncompleted - vain - in vain - unprosperous - nonviable - miscarried - unfruitful - unvictorious - foiled - stymied - frustrated - null - void - nullified - unworkable - impractical - ineffectual - inefficacious - useless - hopeless - pointless - barren - sterile - nonproductive - nonperforming - non-successful - non-achieving - non-effective - non-productive
An unsuccessful attempt or endeavor is one that does not produce the desired outcome or achieve the intended goal. It often signifies that despite efforts and actions taken towards a certain objective, the result falls short of what was expected or hoped for. The reasons for being unsuccessful can be varied, including lack of proper planning, insufficient resources, unforeseen obstacles, or external factors beyond one's control.