It means that whatever they are referring to does not perform very well.
It means it was "made" ineffective.
Words meaning to cancel or make ineffective are void, revoke, annul, counteract, offset, invalidate...
Someone who is retired or ineffective because of advanced age
Ineffective
The future of marketing mostly lies in the internet and radio. People can now fast forward through advertisements on the television, so they are largely ineffective.
Heat makes it ineffective
An example of an ineffective affirmation
ineffective
ineffective
The word means "unprofitable, unfruitful, and ineffective" or something which in the changed circumstances cannot be done or achieved.
Ineffective means it doesn't work, or at least not dependably.
ineffective