How to pronounce comfortably in American English

IPA /ˈkʌmfərɾəbli/ Syllables 4 · kuhm·fer·tuh·blee Stress 1st syllable
KUHM·fer·tuh·blee
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Americans pronounce comfortably as KUHM-fer-tuh-blee (/ˈkʌmfərɾəbli/). In "comfortably", the "t" between vowels sounds like a quick "d" — the tongue briefly taps the ridge behind the upper teeth. This is called the Flap T, a hallmark of natural-sounding American speech. It comes out as KUHM·fer·tuh·blee. Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The heatwave made it almost impossible to go outside comfortably".

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Common mistakes

Saying a hard "T" in the middle.

In "comfortably", the "t" between vowels sounds like a quick "d" — the tongue briefly taps the ridge behind the upper teeth. /t/ or /d/ becomes a quick tap [ɾ] — sounds like a soft D. The tongue briefly taps the ridge behind the upper teeth.

Stressing the wrong syllable.

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

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Sound by sound

Every sound in "comfortably".

4 syllables, 10 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.

Mouth position for /k/ as in KEY
uh/ʌ/

Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.

m/m/

Press your lips together. Air flows through your nose. Vocal cords vibrate.

Mouth position for /m/ as in MAN
f/f/

Lift your bottom lip to touch the very bottom of your top front teeth. Blow air through this contact point without voicing.

Mouth position for /f/ as in FAN
er/ər/

Relax your mouth and lift the tongue back and up. Keep the lips neutral.

Mouth position for MOTHER R-Vowel
t/t/
Flap

Quickly bounce the front of your tongue against the roof of your mouth. Don't stop the airflow — just a quick tap.

Mouth position for /t/ as in TEN
uh/ʌ/

Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.

b/b/

Press your lips together, add vocal cord vibration, then release.

Mouth position for /b/ as in BED
l/l/

Place the tip of your tongue against the alveolar ridge just behind your top front teeth, the same contact point as /t/, /d/, and /n/. The difference is what happens to the air: for /l/, you let it flow continuously around the <em>sides</em> of the tongue (that's why /l/ is called a lateral). Turn your voice on the whole time. Lips stay relaxed, no rounding or flaring. For the Dark L variant at the end of a syllable, also pull the back of the tongue up and back toward the soft palate.

Mouth position for /l/ as in LET
ee/i/

Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.

Mouth position for SEE Vowel
In real conversation

Hear "comfortably" in the wild.

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

"The heatwave made it almost impossible to go outside comfortably."
dhuh HEET·wayv MAYD iht AHL·mohst uhm·PAH·suh·buhl tuh GOH OWT·sahyd KUHM·fer·tuh·blee
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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

Saying a hard "T" in the middle.

In "comfortably", the "t" between vowels sounds like a quick "d" — the tongue briefly taps the ridge behind the upper teeth. /t/ or /d/ becomes a quick tap [ɾ] — sounds like a soft D. The tongue briefly taps the ridge behind the upper teeth.

KUHM-fer-tuh-bleeKUHM·fer·tuh·blee
02

Stressing the wrong syllable.

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

kuhm·FER·TUH·BLEEKUHM·fer·tuh·blee
03

Pronouncing the unstressed syllable too fully.

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

KUHM·fer·TUH·bleeKUHM·fer·tuh·blee
04

Pronouncing the "R" too clearly.

Americans use a relaxed retroflex R — the tongue curls back rather than rolling. The R is one continuous sound with the vowel before it, not two separate sounds.

… (no R)r (curl the tongue)
Questions

Questions people ask about this.

How is "comfortably" stressed in American English?
Stress falls on the first syllable — say "KUHM" with a longer, fuller vowel and keep every other syllable short and quick. The respell "KUHM-fer-tuh-blee" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why doesn't the T sound like a T in "comfortably"?
In American English, when /t/ sits between two vowels with the second one unstressed, it turns into a quick D-like flap. So "comfortably" sounds closer to "KUHM-fer-tuh-blee" than to a crisp-T pronunciation. This is the flap-T rule, one of the most distinctive sounds of casual American speech.
Why does the third syllable in "comfortably" 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 "KUHM-fer-tuh-blee" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "comfortably"?
Americans use a relaxed retroflex R: the tongue curls back rather than rolling, and the R is one continuous sound with the vowel before it — not two separate sounds. Don't try to pronounce a separate vowel followed by a separate R. Treat them as a single shape.

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