eh/ɛ/
Drop your jaw moderately. Touch the tongue tip behind the bottom front teeth and lift the mid-front part slightly toward the roof.
How to pronounce exponentially in American English
ehk·spuh·NEHN·shuh·lee
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Americans pronounce exponentially as ehk-spuh-NEHN-shuh-lee (/ˌɛkspəˈnɛnʃəli/). Stress falls on the third syllable — keep everything else short and quick. You'll hear it in sentences like "Solar and wind power installations have increased exponentially".
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Sound by sound
Every sound in "exponentially".
5 syllables, 12 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
s/s/
Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.
p/p/
Press your lips together to stop the air, then release. No vocal cord vibration.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
n/n/
SyllabicThe schwa before N disappears — N becomes the vowel of the syllable. Go straight from the previous consonant to N.
eh/ɛ/
Drop your jaw moderately. Touch the tongue tip behind the bottom front teeth and lift the mid-front part slightly toward the roof.
n/n/
Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.
sh/ʃ/
Flare your lips and lift the mid-front tongue close to the roof of your mouth. Blow air through without voicing.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
l/l/
SyllabicThe schwa before L disappears — L becomes the vowel of the syllable. Go straight from the previous consonant to a Dark L.
ee/i/
Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.
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Watch out
Common pronunciation mistakes in American English.
The textbook way isn't wrong — it's just not how anyone actually says it.
01
Stressing the wrong syllable.
Stress falls on the third syllable, not the others. Stretch NEHN — keep everything else short and quick.
EHK·SPUH·nehn·SHUH·LEE→EHK·spuh·NEHN·shuh·lee
02
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.
ehk·SPUH·NEHN·shuh·lee→EHK·spuh·NEHN·shuh·lee
Questions
Questions people ask about this.
How is "exponentially" stressed in American English?
Stress falls on the third syllable — say "NEHN" with a longer, fuller vowel and keep every other syllable short and quick. The respell "ehk-spuh-NEHN-shuh-lee" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the second syllable in "exponentially" 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 "ehk-spuh-NEHN-shuh-lee" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "exponentially" 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 "ehk-spuh-NEHN-shuh-lee" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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