B2adjectiveworkscience
US/ˌɪn.ɪˈfek.tɪv/
UK/ˌɪn.ɪˈfek.tɪv/
not producing the result you want
In context
The new rules proved ineffective at reducing traffic in the city.
This cream is ineffective against the insects here.
An ineffective manager can slow down the whole team.
Words that go with ineffective
adverb + adjective
- largely ineffectiveThe warning signs were largely ineffective.
- totally ineffectiveThe treatment proved totally ineffective.
- completely ineffectiveThe lock was completely ineffective.
adjective + preposition
- ineffective againstAntibiotics are ineffective against viruses.
- ineffective atThe policy is ineffective at stopping crime.
adjective + noun
- ineffective methodShouting is an ineffective method of teaching.
Common mistakes
Incorrect:
ineffective to stopCorrect: ineffective at stopping