Here are some examples:
* The weather adversely affected our plans for a picnic. (The weather made it impossible to have a picnic.)
* The company's decision to cut costs could adversely impact employee morale. (The cost cuts might make employees feel less valued and motivated.)
* The drug's side effects could adversely affect the patient's health. (The drug could have harmful consequences for the patient.)
Synonyms for "adversely" include:
* negatively
* detrimentally
* unfavorably
* harmfully
* prejudicially