B2adjectiveformalacademic
US/ædˈvɜːrs/
UK/ˈæd.vɜːs/
having a harmful or negative effect; not good for something
In context
Too much screen time can have adverse effects on children's sleep.
The festival was canceled because of adverse weather.
The new rule received adverse comments from teachers and parents.
Words that go with adverse
adjective + noun
- adverse effectAir pollution has an adverse effect on public health.
- adverse impactThe factory had an adverse impact on the local river.
- adverse weatherFlights were delayed due to adverse weather.
- adverse conditionsThe volunteers worked in adverse conditions for weeks.
- adverse reactionA few patients had an adverse reaction to the medicine.