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Line breaks: ad|verse
Pronunciation: /ˈadvəːs

Definition of adverse in English:


Preventing success or development; harmful; unfavourable: taxes are having an adverse effect on production adverse weather conditions
More example sentences
  • Despite the adverse blustery weather conditions, it was clear that Oxford had the edge.
  • The development will not have any adverse effect upon bats or other wildlife living in the area.
  • She said the development would have major adverse impacts on the beauty of the landscape.


late Middle English: from Old French advers, from Latin adversus 'against, opposite', past participle of advertere, from ad- 'to' + vertere 'to turn'. Compare with averse.


The two words adverse and averse are related in origin but they do not have the same meaning. Adverse meansunfavourable or harmful’ and is normally used of conditions and effects rather than people, as in adverse weather conditions. Averse, on the other hand, is used of people, nearly always with to, and means ‘having a strong dislike or opposition to something’, as in I am not averse to helping out. A common error is to use adverse instead of averse, as in he is not adverse to making a profit.



Example sentences
  • Public servants are used to being compared, adversely, with the private sector.
  • The unity and character of our village has been adversely affected.
  • It will all come down to what is sustainable and what will not impact adversely on the park's fauna and flora.

Definition of adverse in:

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