addiction /əˈdɪkˌʃən/ noun4 •A state that is characterized by compulsive drug use or compulsive engagement in rewarding behavior, despite negative consequences.Do your lethal addictions to self-prescriptions numb the ache of the darkest days? — 2019 •A habit or practice that damages, jeopardizes or shortens one's life but when ceased causes trauma. •A pathological relationship to mood altering experience that has life damaging consequences.His addiction was to courses vain. — 1599 •The state of being addicted; devotion; inclination. formsaddictions