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Definitions

longtime

[lawng-tahym, long-] / ˈlɔŋˌtaɪm, ˈlɒŋ- /
ADJECTIVE
deep-seated
Synonyms
STRONGEST
built-in chronic deep-rooted inbred inherent longstanding
WEAK
confirmed deep-down deeply felt dyed-in-the-wool established fixed habitual inborn lodged in one's brain subconscious
Antonyms
STRONGEST
added temporary
ADJECTIVE
veteran
Synonyms
STRONGEST
old-time skilled trained
STRONG
adept expert old pro steady versed vet wise
WEAK
battle-scarred been around disciplined exercised from way back hardened inured knows one's stuff long-serving long-time not born yesterday of the old school practical practiced proficient sophisticated up to speed weathered wise to ways worldly
Antonyms
STRONG
unskilled
WEAK
amateur green inexperienced

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.

A longtime staple in men’s luxury streetwear, this month Fear of God debuts its first womenswear line for Collection Nine.

From Los Angeles Times • Apr. 3, 2026

Julian Pavia, Weir’s longtime editor at Ballantine, described the author as a “genuine science-fiction writer” engaged in actual problem solving.

From The Wall Street Journal • Apr. 3, 2026

US President Donald Trump has removed Attorney General Pam Bondi - a longtime ally and fierce defender of his administration - from her post as America's top law enforcement officer.

From BBC • Apr. 2, 2026

Another longtime observer of IPOs, the University of Florida professor Jay Ritter, also thinks the 15-day fast entry to the Nasdaq 100 will foster a kind of slow-motion flipping.

From Barron's • Apr. 1, 2026

Fischer then announced that he was going to marry Miyoko Watai, his longtime companion.

From "Endgame" by Frank Brady

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.