Adverse Definition & Meaning | Britannica Dictionary (original) (raw)

Britannica Dictionary definition of ADVERSE

[more adverse; most adverse]

:

bad or unfavorable

:

not good

• adverse criticism/remarks

• He had an adverse reaction to the medicine. [=he reacted badly to the medicine; the medicine had a bad effect on him]

• Many fear that budget cuts will have an adverse [=_damaging_] effect on education.

• adverse circumstances/conditions/weather

• The drug has no adverse [=_harmful_] side effects.

• Sales were adversely affected by the bad weather.

• Staff changes could affect the project adversely.