Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Like other social media apps, Facebook doesn't notify you if someone unfollows or unfriends you, but there's an easy way to verify this yourself.
Source: https://screenrant.com/facebook-check-someone-not-following-you-how/