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robust

American  
[roh-buhst, roh-buhst] / roʊˈbʌst, ˈroʊ bʌst /

adjective

  1. strong and healthy; hardy; vigorous.

    a robust young man; a robust faith; a robust mind.

    Synonyms:
    sound, powerful
    Antonyms:
    feeble
  2. strongly or stoutly built.

    his robust frame.

    Antonyms:
    weak
  3. suited to or requiring bodily strength or endurance.

    robust exercise.

  4. rough, rude, or boisterous.

    robust drinkers and dancers.

    Synonyms:
    rambunctious, coarse
  5. rich and full-bodied.

    the robust flavor of freshly brewed coffee.

  6. strong and effective in all or most situations and conditions.

    The system requires robust passwords that contain at least one number or symbol.

    Our goal is to devise robust statistical methods.


robust British  
/ ˈrəʊbʌst, rəʊˈbʌst /

adjective

  1. strong in constitution; hardy; vigorous

  2. sturdily built

    a robust shelter

  3. requiring or suited to physical strength

    a robust sport

  4. (esp of wines) having a rich full-bodied flavour

  5. rough or boisterous

  6. (of thought, intellect, etc) straightforward and imbued with common sense

"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 robust

First recorded in 1540–50; from Latin rōbustus “oaken, hard, strong,” equivalent to rōbus- (stem of rōbur “oak, strength”) + -tus, adjective suffix

Explanation

Use robust to describe a person or thing that is healthy and strong, or strongly built. This adjective also commonly describes food or drink: a robust wine has a rich, strong flavor. If your school has a robust sports program, it means they offer lots of different kinds of sports and that a lot of kids participate. If you have a robust speaking voice, it means you have a voice that's deep and loud and strong. Robust is from Latin robustus "of oak, hard, strong," from robur "oak tree, strength."

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Vocabulary lists containing robust

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.

Big picture: Robust retail sales in the first three months of the year could pave the way for a rebound in gross domestic product in the first quarter.

From MarketWatch • Apr. 21, 2026

Developer Adam Riches, of indie studio Robust Games, told BBC News the different levels of funding could be good news for companies like his.

From BBC • Apr. 16, 2026

Robust disclosure reduces a company’s cost of capital.

From The Wall Street Journal • Mar. 25, 2026

Robust spending is driving up prices of services from haircuts to healthcare, a dynamic that is now taking center stage in the Federal Reserve’s fight against inflation.

From The Wall Street Journal • Mar. 23, 2026

One was named Nero, another Tiberius; farther on Robust and the Snorer opened their round mouths.

From The Enemies of Women (Los enemigos de la mujer) by Blasco Ib??ez, Vicente

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