addicted (to)

given over, given up to, dependent on, disposed to, inclined, habituated, prone, accustomed, attached, abandoned, wedded, devoted, predisposed, used to, imbued with, fanatic about, obsessed with, wont to, in the habit of, under the influence of, in favor of, hooked on*, strung out*.

Antonyms unaccustomed*, disinclined, averse to.