Antonyms for the word "Good-fellowship" include animosity, hostility, ill-will, enmity, antagonism, and malevolence. These terms represent a distinct lack of warmth, kindness, and camaraderie that characterize good-fellowship. They suggest a relationship between people that is characterized by suspicion, distrust, and a lack of mutual respect. Whereas good-fellowship is predicated on the idea of people coming together and enjoying each other's company, these antonyms highlight a situation where people have become isolated and are unwilling to work together. Ultimately, it's clear that good-fellowship is essential for creating a positive and collaborative environment, while its antonyms can have a negative effect on people's overall happiness and success.