adjective ro·bust \ rō-ˈbəst , ˈrō-(ˌ)bəst \
|Updated on: 11 Aug 2018

Definition of robust

1 a : having or exhibiting strength or vigorous health
b : having or showing vigor, strength, or firmness
  • a robust debate
  • a robust faith
c : strongly formed or constructed : sturdy
  • a robust plastic
d : capable of performing without failure under a wide range of conditions
  • robust software
2 : rough, rude
  • stories … laden with robust, down-home imagery
  • Playboy
3 : requiring strength or vigor
  • robust work
4 : full-bodied
  • robust coffee
; also : hearty
  • a robust dinner
5 : relating to, resembling, or being a specialized group of australopithecines characterized especially by heavy molars and small incisors adapted to a vegetarian diet
Note: Robust australopithecines are included in the genus Australopithecus along with gracile forms or placed in the separate genus Paranthropus.
— compare gracile 3




play \rō-ˈbəs(t)-nəs, ˈrō-(ˌ)bəs(t)-\ noun

Examples of robust in a Sentence

  1. If Singapore, just seven miles to the north with its glittering skyline and robust economy, is Southeast Asia's Cinderella, Batam is her dark sister. —Peter GwinNational GeographicOctober 2007
  2. The greatest gains in mine mechanization came in a burst of innovation following World War II, when robust new machines were developed … —Robert L. MarovelliScientific AmericanSeptember 1982
  3. Humfry was a man whom everyone noticed. His stature was above ordinary, his complexion sanguine, his conversation lively, and his constitution robust. —Samuel Eliot MorisonThe European Discovery of America1971
  4. Why is almost every robust healthy boy with a robust healthy soul in him, at some time or other crazy to go to sea? —Herman MelvilleMoby Dick1851
  5. robust young men and women

  6. He is in robust health.

  7. The sauce has a robust flavor.

Recent Examples of robust from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'robust.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of robust

Latin robustus oaken, strong, from robor-, robur oak, strength

Synonym Discussion of robust

healthy, sound, wholesome, robust, hale, well mean enjoying or indicative of good health. healthy implies full strength and vigor as well as freedom from signs of disease.
    • a healthy family
sound emphasizes the absence of disease, weakness, or malfunction.
    • a sound heart
wholesome implies appearance and behavior indicating soundness and balance.
    • a face with a wholesome glow
robust implies the opposite of all that is delicate or sickly.
    • a lively, robust little boy
hale applies particularly to robustness in old age.
    • still hale at the age of eighty
well implies merely freedom from disease or illness.
    • she has never been a well person

ROBUST Defined for English Language Learners


Definition of robust for English Language Learners

  • : strong and healthy

  • : strongly formed or built

  • : successful or impressive and not likely to fail or weaken

ROBUST Defined for Kids


adjective ro·bust \ rō-ˈbəst \

Definition of robust for Students

: strong and healthy



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resembling the blue of the sky

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