habitual

Synonyms: accepted accustomed addicted addicting automatic chronic common confirmed constant continual conventional customary cyclic disciplined familiar fixed frequent hardened ingrained inveterate iterated iterative mechanical methodical natural normal ordinary perfunctory permanent perpetual persistent practiced recurrent regular reiterative repeated repetitious rooted routine seasoned set standard steady systematic traditional wonted

Antonyms: infrequent inhabitual intermittent occasional rare seldom uncommon unestablished unusual