obsessivelyEnglishOxford New American Dictionaryobsessively /əbˈsesivlē, , əbˈsɛsɪvli, äbˈsesivlē, ɑbˈsɛsɪvli/ ▸ adverb in an obsessive manner: she worries obsessively about her impending motherhood he is obsessively focused on his career.