How to pronounce fastest in American English

IPA /ˈfæstəst/ Syllables 2 · fa·stuhst Stress 1st syllable

FA·stuhst

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Americans pronounce fastest as FA-stuhst (/ˈfæstəst/). 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%

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72% Noticeable accent

Common mistakes

Stressing the wrong syllable.

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

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.

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Why it sounds different

Why "fastest" sounds like FA·stuhst.

The "" at the end of "" is dropped before the consonant starting "" — the surrounding consonants flow directly together — common in flowing natural speech; in careful or formal speech, the sound is often kept. This is called the Silent T/D Across Words, the way sentences stop sounding like a list and start sounding like speech. It comes out as FA·stuhst.

In real conversation

Hear "fastest" in the wild.

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

"The cheetah is the fastest land animal in the world."

dhuh CHEE·duh ihz dhuh FA·stuhst LAND A·nuh·muhl ihn dhuh WURLD

"The speed of light is the fastest speed in the universe."

dhuh SPEED uhv LAHYT ihz dhuh FA·stuhst SPEED ihn dhuh YOO·nuh·vurs

Watch out

Common pronunciation mistakes in American English.

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

Stressing the wrong syllable.

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

fa·STUHST→FA·stuhst

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.

FA·STUHST→FA·stuhst

Questions

Questions people ask about this.

How is "fastest" stressed in American English?

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

Why does the second syllable in "fastest" 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 "FA-stuhst" shows the reduced form so you can hear the casual rhythm directly.

Is the American pronunciation of "fastest" 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 "FA-stuhst" 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

Stressing the wrong syllable.

Pronouncing the unstressed syllable too fully.

Why "fastest" sounds like FA·stuhst.

Hear "fastest" in the wild.

Words that work the same way.

Common pronunciation mistakes in American English.

Stressing the wrong syllable.

Pronouncing the unstressed syllable too fully.

Questions people ask about this.

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