tenacious

tenacious — adjective

1. describes someone who refuses to stop trying to achieve a goal or to change a be

1.adjectiveB2
Definition

describes someone who refuses to stop trying to achieve a goal or to change a belief, even when they face strong difficulties or opposition from others.

Example

Minh was a tenacious reporter who spent three years investigating the corruption scandal.

tenacious + noun describing a person's character

The home team's tenacious defence kept their opponents from scoring a single goal.

tenacious + noun describing an action (defence)

Common collocations
  • tenacious grip
  • tenacious hold
  • tenacious fighter
  • tenacious defence
  • tenacious pursuit
  • tenacious belief
Synonyms
  • persistent

    more neutral and common; less emotional than tenacious

  • determined

    focuses on firm intention rather than the effort of holding on

  • dogged

    more literary; emphasises never giving up despite difficulty

  • unyielding

    more formal; stresses refusal to be influenced or changed

Antonyms

Grammar Patterns

tenacious + noun (person or action)

tenacious in [noun/gerund]

tenacious of [noun]

Usage Note

Unlike stubborn, which usually carries a negative meaning of foolish or unreasonable refusal to change, tenacious is often positive — it praises a person's admirable determination and steady effort.

Common Mistakes

He was tenacious about refusing to share his toys with his sister.
He was stubborn about refusing to share his toys with his sister.
Tenacious implies admirable determination toward a worthy goal; stubborn is used for unreasonable or selfish refusal.

2. continues to exist, stay active, or have an impact for much longer than usual, s

2.adjectiveB2
Definition

continues to exist, stay active, or have an impact for much longer than usual, surviving attempts to remove or end it.

Example

Tenacious old traditions still influence the way people celebrate festivals in the village.

tenacious + noun (tradition)

Sayaka had a tenacious cough that lasted for three weeks after she caught the flu.

tenacious + noun describing a persistent condition

Common collocations
  • tenacious tradition
  • tenacious rumour
  • tenacious problem
  • tenacious weed
  • tenacious belief
  • tenacious myth
Synonyms
  • persistent

    more general; can describe both good and bad things that last

  • enduring

    more formal; suggests lasting importance or value

  • long-lasting

    more informal and direct; less emphatic than tenacious

Antonyms

Grammar Patterns

tenacious + abstract noun

Usage Note

Use this sense for things (traditions, problems, rumours, plants) that refuse to go away. Do not use it for people — for a person who keeps trying, use sense 1 instead.

Common Mistakes

My grandfather is tenacious — he has been sick for years but still lives on.
My grandfather's illness was tenacious
it lasted for years.' — Sense 2 describes things or conditions that endure, not people.

3. describes a physical substance that sticks firmly to surfaces or holds itself to

3.adjectiveC1
Definition

describes a physical substance that sticks firmly to surfaces or holds itself together so tightly that it is hard to separate.

Example

Tenacious mud stuck to Joaquín's boots, making each step feel heavier.

tenacious + noun describing a substance (mud)

A tenacious glue held the broken vase together for years before it finally came apart.

tenacious + noun (glue)

Common collocations
  • tenacious mud
  • tenacious glue
  • tenacious sap
  • tenacious resin
  • tenacious roots
  • tenacious paint
Synonyms
  • sticky

    more common and informal; lacks the emphasis on resistance to separation

  • adhesive

    more technical; used specifically for glues and tapes

  • viscous

    describes thick liquids that flow slowly, not the same as sticking

Antonyms
  • brittle

    breaks easily when bent or pulled

  • slippery

    smooth and difficult to hold onto

Grammar Patterns

tenacious + noun (substance or material)

Usage Note

This physical sense is less common in everyday conversation than senses 1 and 2. It appears more often in technical writing about materials, adhesives, soils, or plant biology.

4. having the ability to remember facts, people, experiences, or information clearl

4.adjectiveC1
Definition

having the ability to remember facts, people, experiences, or information clearly and for a long time.

Example

Anita had a tenacious memory and could recall conversations from over forty years ago.

tenacious memory — the core collocation

Élise had a tenacious memory for historical dates and never needed to check a calendar.

tenacious memory for [topic]

Common collocations
  • tenacious memory
  • tenacious memory for faces
  • tenacious memory for names
  • tenacious memory for details
Synonyms
  • retentive

    more technical; almost exclusively used with 'memory'

  • photographic

    informal; suggests perfect, detailed recall; more dramatic than tenacious

Antonyms

Grammar Patterns

tenacious memory

tenacious memory for [topic]

Usage Note

This sense is the narrowest — it only modifies 'memory' or, occasionally, 'mind.' Do not use it directly for a person's character (that is sense 1). 'A tenacious student' means a determined student, not one with a good memory.

Common Mistakes

She is a tenacious student who remembers everything the teacher says.
She has a tenacious memory and remembers everything the teacher says.
Tenacious for memory modifies 'memory' itself, not the person directly.

Word family

  • tenaciously
    adverbC1
  • tenacity
    nounC1

Synonym discussion

Sense: adjective/1

All four words describe someone who does not give up easily, but they differ in tone and scope. Persistent is the most neutral and common — it simply means continuing steadily despite difficulty, without strong emotion (a persistent salesman, a persistent cough). Determined focuses on firm intention and resolve; it is positive and emphasises the mental decision to succeed. Dogged is more literary and suggests a quieter, more patient refusal to quit — a dogged researcher may spend years on a single question without fanfare. Stubborn is the only clearly negative one in the set: it implies unreasonable or foolish refusal to change, often in trivial or selfish matters. Tenacious, by contrast, is positive: it praises someone who holds on to a worthy goal with admirable strength. A tenacious lawyer fights for justice; a stubborn child refuses to eat vegetables.

persistent ↗determined ↗doggedstubborn ↗

Common collocations

Nouns

  • tenacious grip
  • tenacious hold
  • tenacious defence
  • tenacious spirit

Adverbs

  • remarkably tenacious
  • incredibly tenacious
  • fiercely tenacious
  • surprisingly tenacious

Phrases

  • tenacious in the face of adversity

Prepositions

  • tenacious in
  • tenacious of

Etymology

LatinFrenchEnglish

Tenacious comes from the Latin word 'tenax' (holding fast), which itself comes from the verb 'tenere' (to hold). It entered English through French ('tenace') in the early 1600s. The core image is of physically gripping something and not letting go — this literal, physical meaning later expanded to describe people's determination and the lasting quality of beliefs or traditions.