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