long-established

ADJECTIVE

confirmed

Synonyms

STRONGEST

accustomed chronic deep-rooted deep-seated dyed-in-the-wool entrenched fixed habituated ingrained inured inveterate

WEAK

hard-shell hardened seasoned staid worn

Antonyms

WEAK

indefinite infrequent sporadic uncommitted unconfirmed undecided

ADJECTIVE

hard-shell

Synonyms

WEAK

accepted accustomed chronic deep-rooted deep-seated dyed-in-the-wool entrenched firmly established fixed habituated hardened ineradicable ingrained inured inveterate irradicable proved seasoned set settled staid

ADJECTIVE

ineradicable

Synonyms

WEAK

accepted accustomed chronic deep-rooted deep-seated dyed-in-the-wool entrenched firmly established fixed habituated hard-shell hardened ingrained inured inveterate irradicable proved seasoned set settled staid valid worn

ADJECTIVE

irradicable

Synonyms

WEAK

accepted accustomed chronic deep-rooted deep-seated dyed-in-the-wool entrenched firmly established fixed habituated hard-shell hardened ineradicable ingrained inured inveterate proved seasoned set settled staid valid worn

ADJECTIVE

long-standing

Synonyms

WEAK

abiding durable enduring established fixed lasting long-lasting long-lived traditional

ADJECTIVE

old-school

Synonyms

WEAK

acceptable accustomed backward-looking classic classical conforming conservative conventional customary habitual old guard old-fashioned old-line popular regular rooted time-honored traditional unprogressive

ADJECTIVE

time-honored

Synonyms

STRONGEST

classical conventional customary usual

WEAK

accustomed ancestral classic fixed folk historic old popular regular rooted standard taken for granted universal vintage widespread

Antonyms

STRONGEST

abnormal different irregular uncommon unusual

ADJECTIVE

traditional

Synonyms

STRONGEST

classic classical common conventional historic old popular regular time-honored universal

WEAK

acceptable accustomed acknowledged ancestral customary doctrinal fixed folk habitual immemorial oral prescribed rooted sanctioned taken for granted transmitted unwritten widely used widespread

Antonyms

STRONGEST

abnormal different extraordinary infrequent irregular modern new rare uncommon unusual

WEAK

fresh unestablished unfixed untraditional

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The mainline is a collection of long-established Protestant denominations: the Episcopalians, United Methodists, Presbyterians and so on.

From The Wall Street Journal • Jun. 25, 2026

Freedom 250 is a limited liability company that operates inside a long-established foundation, the National Park Foundation, meaning it won’t have to disclose anything about its spending until 2027.

From The Wall Street Journal • Apr. 21, 2026

The pet food industry has pushed back against the changes, describing the new guidance as "a significant change to long-established advice", and has warned it risks "confusing the millions of people who regularly feed birds".

From BBC • Apr. 9, 2026

By introducing “shared clinical decision-making” in this scenario, the CDC hints that this isn’t already a long-established practice between medical professionals, patients and their parents, in place for decades.

From MarketWatch • Mar. 5, 2026

Here I think I should remind you that my family is long-established in rather the upper echelons of the British aristocracy.

From "Code Name Verity" by Elizabeth Wein

long-established

Example Sentences

Related Words