Antonyms for "am gracious to" include "am unkind to," "am mean to," "am rude to," and "am disrespectful to." These words suggest a lack of courtesy, kindness, or consideration towards others. When someone is ungracious, they may be dismissive, aloof, or even hostile. They may fail to show appreciation, gratitude, or compassion towards others. This can be harmful to interpersonal relationships and may cause feelings of resentment, frustration, or rejection. To avoid being ungracious, it's important to be mindful of how we treat others and to always strive to be kind, considerate, and respectful in our interactions with others.