We found one dictionary that defines the word affect negatively:

Phrases: to affect negatively, more... ▸ Words similar to affect negatively ▸ Usage examples for affect negatively ▸ Idioms related to affect negatively ▸ Wikipedia articles (New!) ▸ Words that often appear near affect negatively ▸ Rhymes of affect negatively ▸ Invented words related to affect negatively