tenacious
Americanadjective
-
holding fast; characterized by keeping a firm hold (often followed byof ).
a tenacious grip on my arm; tenacious of old habits.
-
highly retentive.
a tenacious memory.
-
persistent, stubborn, or obstinate.
- Synonyms:
- obstinate, persistent, pertinacious, dogged
-
adhesive or sticky; viscous or glutinous.
- Synonyms:
- clingy
-
holding together; cohesive; not easily pulled asunder; tough.
adjective
-
holding or grasping firmly; forceful
a tenacious grip
-
retentive
a tenacious memory
-
stubborn or persistent
a tenacious character
-
holding together firmly; tough or cohesive
tenacious cement
-
tending to stick or adhere
tenacious mud
Other Word 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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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.
Karoline Leavitt, the tenacious former Trump White House press secretary, is joining Fox News as a contributor.
From Los Angeles Times ● Oct. 5, 2026
May you marvel at this story of the person behind the painting as much as I do at the tenacious person behind the telling.
From The Wall Street Journal ● Sep. 26, 2026
Lewis Miley: Little he could do for deflection for Tanaka's goal, but was overrawed by Leeds' tenacious midfield.
From BBC ● Sep. 14, 2026
The film’s own logline gets at the tension: four tenacious girls navigate an $800 million business “in which innocence and ambition collide.”
From Salon ● Aug. 28, 2026
Luna didn’t have very many memories that were as tenacious as this one—her memory, typically, was a slippery thing, and difficult to pin down—and so she hung on to it.
From "The Girl Who Drank the Moon" by Kelly Barnhill
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.