making good use of (verb) profit: gain; get or give an advantage
Sinonime: abortive, anticlimactic,
barren, bootless, defeasible, emasculate,
feckless,
feeble, forceless,
fruitless,
futile,
idle, impotent,
inadequate,
incompetent,
indecisive,
ineffectual, inefficacious,
inefficient,
inept,
inferior,
innocuous, inoperative,
lame,
limited, neutralized, no go, no way, not effective,
nugatory,
null,
paltry,
powerless, slack-spined, spineless,
unable,
unavailable, unavailing, unfruitful, unproductive, unprofitable,
unsuccessful,
vain,
void, withered,
worthlessAntonime: effective