Meaning of ADVERSE in English
ad ‧ verse /ˈædvɜːs $ -ɜːrs/ BrE AmE adjective
[ Date: 1300-1400 ; Origin: Early French advers , from Latin adversus , past participle of advertere ; ⇨ ↑ advert ]
1 . not good or favourable:
They fear it could have an adverse effect on global financial markets.
Miller’s campaign has received a good deal of adverse publicity.
2 . adverse conditions conditions that make it difficult for something to happen or exist:
The expedition was abandoned because of adverse weather conditions.
—adversely adverb :
developments which had adversely affected their business
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012