01 n. Firm establishment by long continuance; firmness or deep-rooted obstinacy of any quality or state acquired by time; as, the inveteracy of c…
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1.
Firm establishment by long continuance; firmness or deep-rooted obstinacy of any quality or state acquired by time; as, the inveteracy of custom, habit, or disease; -- usually in a bad sense; as, the inveteracy of prejudice or of error.“An inveteracy of evil habits that will prompt him to contract more.” — A. Tucker.
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2.
Malignity; spitefulness; virulency.“The rancor of pamphlets, the inveteracy of epigrams, and the mortification of lampoons.” — Guardian.