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.

Definitions of tenacious

adj stubbornly unyielding

“"a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot”
“men tenacious of opinion”
dogged, dour, persistent, pertinacious, unyielding
obstinate, stubborn, unregenerate
tenaciously unwilling or marked by tenacious unwillingness to yield

adj sticking together

tenacious burrs”
tending to adhere

adj good at remembering

tenacious memory”
long, recollective, retentive
aware, mindful
bearing in mind; attentive to
forgetful, short, unretentive
(of memory) deficient in retentiveness or range
forgetful, mindless, unmindful
not mindful or attentive
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