ob·ses·sion əbˈseSHən/ noun the state of being obsessed with someone or something. "she cared for him with a devotion bordering on obsession" an idea or thought that continually preoccupies or intrudes on a person's mind. plural noun: obsessions "he was in the grip of an obsession he was powerless to resist" synonyms: fixation, ruling/consuming passion, passion, mania, idée fixe, compulsion, preoccupation, infatuation, addiction, fetish, craze, hobbyhorseTodos os Direitos Reservados