Definition of: habitual

(hə·bich′·əl) adjective
1. Of, pertaining to, or constituting a habit.
2. Acquired by or resulting from habit, repeated use, or continued causes.
3. Characterized by repeated or constant practice or indulgence; inveterate: a habitual liar. [<Med. L habitualis <habitus. See HABIT.]
—ha·bit′u·al·ly adverb
—ha·bit′u·al·ness noun Synonyms: accustomed, common, customary, familiar, general, ordinary, regular, stated, usual, wonted. See COMMON, GENERAL, USUAL. Compare synonyms for HABIT. Antonyms: exceptional, extraordinary, infrequent, irregular, occasional, rare, unusual, unwonted.