settled or confirmed in a habit, practice, feeling, or the like: an inveterate gambler.
firmly established by long continuance, as a disease, habit, practice, feeling, etc.; chronic.

Origin of inveterate

1375–1425; late Middle English < Latin inveterātus (past participle of inveterāre to grow old, allow to grow old, preserve), equivalent to in- in-2 + veter- (stem of vetus) old + -ātus -ate1; cf. veteran
Related formsin·vet·er·ate·ly, adverbin·vet·er·ate·ness, noun

Synonyms for inveterate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inveterately

Contemporary Examples of inveterately

  • On the side were the words “It Is What It Is,” a phrase that Cathy happens to use, inveterately.

    The Daily Beast logo
    6 Secrets of Perfect Gift Giving

    Lee Eisenberg

    November 26, 2009

Historical Examples of inveterately

British Dictionary definitions for inveterately



long established, esp so as to be deep-rooted or ingrainedan inveterate feeling of hostility
(prenominal) settled or confirmed in a habit or practice, esp a bad one; hardenedan inveterate smoker
obsolete full of hatred; hostile
Derived Formsinveteracy or inveterateness, nouninveterately, adverb

Word Origin for inveterate

C16: from Latin inveterātus of long standing, from inveterāre to make old, from in- ² + vetus old
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for inveterately



late 14c., from Latin inveteratus "of long standing, chronic," past participle of inveterare "become old in," from in- "in, into" (see in- (2)) + veterare "to make old," from vetus (genitive veteris) "old" (see veteran).

Online Etymology Dictionary, © 2010 Douglas Harper

inveterately in Medicine




Firmly and long established; deep-rooted.
Persisting in an ingrained habit; habitual.
Related formsin•veter•a•cy (-ər-ə-sē) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.