ineffective

Fire ants circumvented the problem of an ineffective sting by having an unusual and highly effective venom that when daubed or sprayed on other ants penetrates their waxy protective integumental barri

Their use was “impermissible not because it is unwise or ineffective, but because [federal law]^([sic]) does not allow it”, the decision explained.

The 5% topical solution was ineffective at reducing eczema outbreaks.

A plethora of ineffective education programs made the president unpopular amongst fiscal conservatives.

Luckily, the treatment was only ineffective instead of harmful.

Five self-help books later, Sergey still had a terribly ineffective approach to management.