ineffectual Synonyms
futile
unavailing
inefficacious
feckless
vain
otiose
useless
fruitless
meaningless
ineffective
unable
inefficient
unprofitable
wishy-washy
worthless
unadjusted
faint-hearted
dysfunctional
unadapted
weak-kneed
teemless
thwarted
toothless
unconsequential
unfertile
unfit
unfruitful
unskillful
unsuccessful
valueless
void
weak
successless
unfitted
unusable
talentless
unconvincing
uneconomical
uneffective
unequipped
unpersuasive
unratified
unrenewed
unrewarding
unserviceable
unproductive
counterproductive
childless
anticlimactic
no-account