Meaning of ADVERSE in English

ADVERSE

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.