robust

adjective

ro·​bust rō-ˈbəst 

ˈrō-(ˌ)bəst

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 sense 3

robustly adverb

robustness

rō-ˈbəs(t)-nəs 

ˈrō-(ˌ)bəs(t)-

noun

Synonyms

• healthy
• sturdy
• well
• strong

Choose the Right Synonym for 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

Examples of robust in a Sentence

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 Gwin, National Geographic, October 2007

The greatest gains in mine mechanization came in a burst of innovation following World War II, when robust new machines were developed … —Robert L. Marovelli, Scientific American, September 1982

Humfry was a man whom everyone noticed. His stature was above ordinary, his complexion sanguine, his conversation lively, and his constitution robust. —Samuel Eliot Morison, The European Discovery of America, 1971

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 Melville, Moby Dick, 1851

robust young men and women

He is in robust health.

The sauce has a robust flavor.

Recent Examples on the Web

The Desktop Specialist is a fast entry point; the Data Analyst certification builds on it with more robust tools for visual analytics. —Dr. Aviva Legatt, Forbes.com, 26 June 2025

The mobile app is far more robust for video than the desktop web browser version. —PC Magazine, 25 June 2025

These partnerships are designed to accelerate the rollout of autonomous capabilities and ensure that the technology is robust, reliable, and ready for real-world deployment. —Kurt Knutsson, FOXNews.com, 25 June 2025

The problems are real, but the foundational structures and the political will to address them are more robust here than in many other parts of the country. —Deandre Evans, Mercury News, 25 June 2025

Word History

Etymology

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

First Known Use

15th century, in the meaning defined at sense 1a

Rhymes for robust

• adjust
• combust
• discussed
• disgust
• distrust
• entrust
• intrust
• mistrust
• nonplussed
• sawdust
• stardust
• unjust

Kids Definition

robust

adjective

ro·​bust rō-ˈbəst 

ˈrō-(ˌ)bəst

: being strong and vigorously healthy

robustly adverb

robustness

-ˈbəs(t)-nəs 

-(ˌ)bəs(t)-

noun