2 syllables: Ro, bust. Stress on bust.
roh-BUHST
/ɹoʊˈbʌst/
Robust is pronounced roh-BUHST (/ɹoʊˈbʌst/). It has two syllables (Ro-bust), with the stress on "bust". Robust is an adjective meaning strong and healthy, able to withstand pressure or adversity. It often describes durable physical build, vigorous systems, or convincing, well-supported arguments. In everyday use, it signals reliability and resilience, sometimes with a hint of hearty, unrefined energy.
adjectiveRobust is an adjective meaning strong and healthy, able to withstand pressure or adversity. It often describes durable physical build, vigorous systems, or convincing, well-supported arguments. In everyday use, it signals reliability and resilience, sometimes with a hint of hearty, unrefined energy.
- You often misplace stress by defaulting to RO-bust (first syllable stress) when the meaning and context require a strong second syllable emphasis; practice with a beat that marks the second syllable as peak. - Another mistake is not releasing the final consonant cluster clearly; end crisp with a quick /t/ rather than a muffled /s/ or lingering /st/. - Finally, vowel quality can drift toward /ɒ/ or /ɔː/ depending on accent, causing the second syllable to sound off; keep the /ʌ/ or close to /ə/ depending on your target accent.
"The robust alarm system prevented the break-in."
"She gave a robust performance, hitting every note with power."
"The plant’s robust growth surprised the gardeners."
Pronounce as ro-BUST, with secondary stress on the first syllable in many varieties, but primary stress on the second syllable: /roʊˈbʌst/ (US) or /rɒˈbɒst/ (UK typically without exact IPA). Start with an open, rounded /roʊ/ (US) or /rəʊ/ (UK), then a clear /b/ with the vowel /ʌ/ as in 'bun' and end with /st/. Audio reference: try Cambridge English or Forvo entry for robust to hear the exact release.
Common errors include misplacing the stress (say ro-BUST when the US tendency is forceful second syllable stress) and slurring the final /st/ into a weak /s/ or /t/. Another pitfall is an overly lax /ɒ/ in the first syllable for UK speakers; aim for a concise /ɒ/ or /ɑ/ depending on accent. Practice with minimal pairs focusing on vowel quality and crisp /st/ release to avoid a general, flat ending.
US tends to use /roʊˈbʌst/ with a clear /roʊ/ and strong /ˈbʌst/. UK often renders as /ˈrəʊˌbɒst/ or /rəʊˈbʌst/, with a more rounded initial vowel and lighter rhotics. Australian accents typically show /ˈrəʊbəs(t)/ or /ˈroːbɜːst/, where the first vowel can be closer to /ɒ/ or /ɔː/, and the final syllable may have non-rhotic features. In all, stress generally centers on the second syllable, but vowel quality and rhoticity vary.
The difficulty lies in the tense vowel /oʊ/ of the first syllable and the final consonant cluster /st/ which demands a crisp /s/ followed quickly by /t/. The two-syllable structure with secondary initial emphasis can cause misplacement of stress and a shortened first vowel. Additionally, regional vowel shifts influence the /ɒ/ vs /ʌ/ difference in the second syllable, making consistent pronunciation a matter of controlling vowel quality and timely consonant release.
Yes. In some British and Australian speech, you may hear a slightly weakened or shorter second vowel in the first syllable, approaching an unstressed /ə/ or schwa in casual speech, yet the strong /b/ and /st/ persist. This yields variants like /rəˈbɒst/ or /ˈroːbɪst/ depending on the speaker. For SEO-focused queries, people often search for ‘how to pronounce robust’ with emphasis on the second syllable, including hearing examples from dictionaries and video tutorials.
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- US: /roʊˈbʌst/ with a long /oʊ/ and tense /ʌ/. Your jaw is relatively closed in the /oʊ/; keep the lips rounded into the /oʊ/ onset and then open. - UK: /rəʊˈbɒst/ or /roʊˈbɒst/ with a more rounded /əʊ/ glide and a more open /ɒ/ in the second syllable; rhoticity varies—some speakers pronounce the /r/ less strongly in non-rhotic styles. - AU: /ˈroːbəs(t)/ or /ˈrəʊbɒst/; vowel qualities lean toward a longer /oː/ in the first syllable and a shorter, more centralized second vowel; final /t/ is crisp but may be lightly aspirated depending on context. IPA references anchor you to precise articulations.
Robust comes from the Latin robustus, meaning hard, strong, or energetic, derived from robur ‘oak, strength, hardiness.’ The term passed into Old French as robuste and into English as robust by the late Middle Ages, originally describing physical strength or robust equipment. Over time, its sense broadened to describe vigorous intellect, arguments, and systems. In modern usage, robust often implies not just strength but durability and resilience under stress, as in robust health, robust software, or a robust economic model. The word has retained its core sense of sturdiness while expanding into metaphorical domains, reflecting a societal appreciation for reliability and endurance in both material and abstract contexts.
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💡 These words have similar meanings to "Robust" and can often be used interchangeably.
🔄 These words have opposite meanings to "Robust" and show contrast in usage.
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Words that rhyme with "Robust"
-ust sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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