The antonyms for the word "expressed friendliness" can be defined as insensitivity, coldness, hostility, unfriendliness, aloofness, animosity, antagonism, aversion, enmity, disdain, and antipathy. These antonyms are the exact opposite of what expressed friendliness stands for, which is warmth, kindness, openness, and affection towards others. When a person exhibits any of these negative traits, it can make those around them feel uncomfortable and unwelcome. It is important to be mindful of how we express our emotions towards others and to strive to show kindness and friendliness, even in difficult situations.