Ill-wisher refers to someone who holds negative thoughts or intentions towards another individual. Synonyms for ill-wisher include foe, adversary, enemy, nemesis, antagonist, rival, detractor, and critic. These words represent individuals who oppose or harm someone else deliberately. While some may be motivated by jealousy or competition, others may have personal grudges or disputes. It's essential to recognize ill-wishers as it can impact one's mental wellbeing and lead to anxiety and stress. Knowing the synonyms for ill-wisher gives us a better understanding of the different types of people who may have negative intentions towards us.