How to pronounce rapidly in American English

IPA /ˈræpədli/ Syllables 3 · ra·puhd·lee Stress 1st syllable

RA·puhd·lee

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Americans pronounce rapidly as RA-puhd-lee (/ˈræpədli/). The unstressed syllable reduces to a lazy schwa — almost a quick "uh" — instead of being pronounced fully. Stress falls on the first syllable — keep everything else short and quick.

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Sounds

75%

Clarity

68%

Stress

78%

Intonation

65%

Fluency

62%

Overall assessment

Our AI coach listens to your recording and grades 5 dimensions of pronunciation — then tells you exactly what to fix next.

72% Noticeable accent

Common mistakes

Releasing the final consonant with a puff of air.

In "rapidly", the "" is not released — the articulators get into position but hold without the burst of air. Air stops but there's no release burst — the articulators hold position.

Stressing the wrong syllable.

Stress falls on the first syllable, not the others. Stretch RA — keep everything else short and quick.

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Why it sounds different

Why "rapidly" sounds like RA·puhd·lee.

In "rapidly", the "" is not released — the articulators get into position but hold without the burst of air. This is called the Unreleased Stops, and it's why Americans sound more relaxed than the textbook. It comes out as RA·puhd·lee.

In real conversation

Hear "rapidly" in the wild.

Click any sentence to see the full breakdown — every link, every reduction, every flap-T.

"Artificial intelligence algorithms are transforming multiple industries rapidly."

ar·tuh·FIH·shuhl ihn·TEH·luh·juhns AL·guh·rih·dhuhmz er trans·FOR·muhng MUHL·tuh·puhl IHN·duh·streez RA·puhd·lee

"The epidemic spread rapidly through the population."

dhee eh·puh·DEH·muhk SPREHD RA·puhd·lee throo dhuh pah·pyuh·LAY·shuhn

"The renewable energy sector is growing rapidly."

dhuh ruh·NOO·uh·buhl EH·ner·jee SEHK·ter ihz GROH·uhng RA·puhd·lee

"Robotics is advancing rapidly in healthcare and manufacturing sectors."

roh·BAH·duhks ihz uhd·VAN·suhng RA·puhd·lee ihn HEHLTH·kair and ma·nyoo·FAK·cher·uhng SEHK·terz

"The virus mutates rapidly, making it difficult to treat."

dhuh VAHY·ruhs MYOO·tayts RA·puhd·lee MAY·kuhng iht DIH·fuh·kuhlt tuh TREET

Watch out

Common pronunciation mistakes in American English.

The textbook way isn't wrong — it's just not how anyone actually says it.

Releasing the final consonant with a puff of air.

In "rapidly", the "" is not released — the articulators get into position but hold without the burst of air. Air stops but there's no release burst — the articulators hold position.

rapidly→RA·puhd·lee

Stressing the wrong syllable.

Stress falls on the first syllable, not the others. Stretch RA — keep everything else short and quick.

ra·PUHD·LEE→RA·puhd·lee

Pronouncing the unstressed syllable too fully.

Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.

RA·PUHD·lee→RA·puhd·lee

Questions

Questions people ask about this.

How is "rapidly" stressed in American English?

Stress falls on the first syllable — say "RA" with a longer, fuller vowel and keep every other syllable short and quick. The respell "RA-puhd-lee" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.

Why does the second syllable in "rapidly" reduce to "uh"?

Unstressed syllables in American English collapse toward a schwa — a lazy, neutral "uh" sound. The full vowel is what textbooks teach, but in actual American speech every unstressed vowel reduces. The respell "RA-puhd-lee" shows the reduced form so you can hear the casual rhythm directly.

Is the American pronunciation of "rapidly" different from British English?

American English uses different vowel shapes, a relaxed retroflex R, and connected-speech tricks like flap-T and glottal-stop T that British Received Pronunciation generally avoids. The respell "RA-puhd-lee" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.

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Common mistakes

Releasing the final consonant with a puff of air.

Stressing the wrong syllable.

Why "rapidly" sounds like RA·puhd·lee.

Hear "rapidly" in the wild.

Words that work the same way.

Common pronunciation mistakes in American English.

Releasing the final consonant with a puff of air.

Stressing the wrong syllable.

Pronouncing the unstressed syllable too fully.

Questions people ask about this.

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