1. abandoned One is addicted to that which he has allowed to gain a strong, habitual, and enduring hold upon action, inclination, or involuntary tendency, as to a habit or indulgence. A man may be accustomed Synonyms: addicted, abandoned, devoted, given over, inclined, accustomed, disposed, given up, prone, attached, given, habituated, wedded Antonyms: averse, disinclined, indisposed, unaccustomed