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Synonyms

tenacious

American  
[tuh-ney-shuhs] / təˈneɪ ʃəs /

adjective

  1. holding fast; characterized by keeping a firm hold (often followed byof ).

    a tenacious grip on my arm; tenacious of old habits.

  2. highly retentive.

    a tenacious memory.

  3. persistent, stubborn, or obstinate.

    Synonyms:
    obstinate, persistent, pertinacious, dogged
  4. adhesive or sticky; viscous or glutinous.

    Synonyms:
    clingy
  5. holding together; cohesive; not easily pulled asunder; tough.


tenacious British  
/ tɪˈneɪʃəs, tɪˈnæsɪtɪ /

adjective

  1. holding or grasping firmly; forceful

    a tenacious grip

  2. retentive

    a tenacious memory

  3. stubborn or persistent

    a tenacious character

  4. holding together firmly; tough or cohesive

    tenacious cement

  5. tending to stick or adhere

    tenacious mud

"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

Other Word Forms

Derived Forms

Etymology

Origin of tenacious

First recorded in 1600–10; tenaci(ty) + -ous

Explanation

Use tenacious to mean "not easily letting go or giving up," like a clingy child who has a tenacious grip on his mother's hand. A strong grip or an unyielding advocate might both be described as tenacious, a word whose synonyms include resolute, firm, and persistent. The word comes from the Latin root tenax, which means "holding fast." The basketball commentator Marv Albert, impressed by a defender's skill, once uttered the sound bite, "That's some tenacious D!" ("D" is short for "defense.") The musicians Jack Black and Kyle Gass borrowed the phrase for the name of their comedy-rock band, Tenacious D.

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Vocabulary lists containing tenacious

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.

“It was really a horrific thing,” said Jobson, who worked aboard Turner’s boat, Tenacious.

From The Wall Street Journal • May 7, 2026

Tenacious D is plotting a return, according to a new interview with band member Kyle Gass.

From Salon • Jan. 21, 2026

The near 20-year break must have allowed the actor and Tenacious D musician to stash away a private reserve of energy for his fourth time as host.

From Los Angeles Times • Apr. 6, 2025

Tenacious in the carry and committed in defence, Ben Earl enjoyed a stellar campaign as he cemented his place as England's first-choice number eight.

From BBC • Mar. 18, 2024

Tenacious of a sceptre now falling from his hand, he conspired against the life of his successor, and cherished the idea of changing to a democracy the Roman empire.

From History of the Decline and Fall of the Roman Empire — Volume 4 by Milman, Henry Hart

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