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Synonyms

tough

American  
[tuhf] / tʌf /

adjective

tougher, toughest
  1. strong and durable; not easily broken or cut.

    Synonyms:
    hard, firm
    Antonyms:
    fragile
  2. not brittle or tender.

  3. difficult to masticate, as food.

    a tough steak.

  4. of viscous consistency, as liquid or semiliquid matter.

    tough molasses.

  5. capable of great endurance; sturdy; hardy.

    tough troops.

    Synonyms:
    durable
    Antonyms:
    weak, feeble
  6. not easily influenced, as a person; unyielding; stubborn.

    a tough man to work for.

    Synonyms:
    inflexible
  7. hardened; incorrigible.

    a tough criminal.

  8. difficult to perform, accomplish, or deal with; hard, trying, or troublesome.

    a tough problem.

  9. hard to bear or endure (often used ironically).

    tough luck.

  10. vigorous; severe; violent.

    a tough struggle.

  11. vicious; rough; rowdyish.

    a tough character;

    a tough neighborhood.

  12. practical, realistic, and lacking in sentimentality; tough-minded.

  13. Slang. remarkably excellent; first-rate; great.


adverb

  1. in a tough manner.

noun

  1. a ruffian; rowdy.

idioms

  1. hang tough, hang.

  2. tough it out, to endure or resist hardship or adversity.

tough British  
/ tʌf /

adjective

  1. strong or resilient; durable

    a tough material

  2. not tender

    he could not eat the tough steak

  3. having a great capacity for endurance; hardy and fit

    a tough mountaineer

  4. rough or pugnacious

    a tough gangster

  5. resolute or intractable

    a tough employer

  6. difficult or troublesome to do or deal with

    a tough problem

  7. informal unfortunate or unlucky

    it's tough on him

"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

noun

  1. a rough, vicious, or pugnacious person

"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

adverb

  1. informal violently, aggressively, or intractably

    to treat someone tough

  2. informal to be or appear to be strong or determined

"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

verb

  1. slang (tr) to stand firm, hold out against (a difficulty or difficult situation) (esp in tough it out )

"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
tough More Idioms  

    More idioms and phrases containing tough


Other Word Forms

Derived Forms

Etymology

Origin of tough

First recorded before 900; Middle English (adjective); Old English tōh; compare Dutch taai, German zäh(e)

Explanation

The adjective tough is good for describing hard times. If you just got mugged, lost your job, got the flu, and broke your toe, you're having a really tough week. Tough means "strong, hard, unbending," and you can use it to describe many different things, like a tough exam, or a tough piece of beef jerky, or a tough day that you just want to be over. If a judge punishes criminals harshly to set examples, she's "tough on crime." We call people toughs if they seem likely to beat you up. Tough things are made to withstand a beating, like the tires on your mountain bike. Pronounce: TUFF.

Keep Reading on Vocabulary.com

Vocabulary lists containing tough

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.

Despite studying species with extremely tough diets and powerful chewing forces, not a single primate showed the wedge-shaped defects so commonly seen in modern dental clinics.

From Science Daily • Jun. 8, 2026

"You come here, you've got to have tough skin," Guercio said.

From Barron's • Jun. 8, 2026

To take truly tough action, Glantz says, authorities need extra powers.

From BBC • Jun. 7, 2026

And after some tough early sledding, it has grown into one of the top 10 leagues in the world, with five teams valued by Forbes at more than $1 billion.

From Los Angeles Times • Jun. 7, 2026

“I know it’s last-minute, but I’m just concerned that it may be a little tough on us all. So we’ll probably be staying here. I’ve already unpacked your suitcase. You can sleep in tomorrow.”

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

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