to no effect

abortive futile ineffective ineffectual pointless unproductive unsuccessful useless

barren empty gainless idle in vain infertile profitless spinning one's wheels sterile to no avail unavailable unavailing unfruitful unprofitable unprolific vain

effective effectual fruitful productive profitable

copious plentiful potent successful useful

fruitless hollow impractical ineffective ineffectual insufficient trivial unproductive unprofitable unsuccessful useless vain worthless

abortive barren bootless delusive empty exhausted forlorn idle impracticable in vain no dice nugatory on a treadmill otiose out the window profitless resultless save one's breath sterile to no avail to no purpose trifling unavailing unimportant unneeded unreal unsatisfactory unsubstantial valueless

effective fruitful helpful productive profitable successful useful valuable worthwhile

hopeful

barren empty exhausted fruitless idle impractical in vain ineffective ineffectual on a treadmill save one's breath to no avail to no purpose trifling trivial unproductive unprofitable unsuccessful useless vain valueless worthless