(1):
(a.) Old; long-established.
(2):
(a.) Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse.
(3):
(a.) Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.
(4):
(a.) Malignant; virulent; spiteful.
(5):
(v. t.) To fix and settle by long continuance.