1. affection An attachment is a feeling that binds a person by ties of heart to another person or thing; we speak of a man's adherence to his purpose, his adhesion to his party, or to anything to which he c Synonyms: attachment, adherence, devotion, friendship, regard, adhesion, esteem, inclination, tenderness, affection, estimation, love, union Antonyms: alienation, aversion, distance, estrangement, repugnance, animosity, coolness, divorce, indifference, separation, antipathy, dislike, enmity, opposition, severance