How to pronounce “supposedly”
Supposedly is pronounced /səˈpoʊzədliː/. It has 4 syllables, and the beat falls on the second one — poʊ. Below: the syllable split, native audio in both accents, the mistake people actually make with this word, and every individual sound in it explained.
Syllables and stress
Split it into 4 beats. The highlighted syllable is the strong one: say it louder, longer and a touch higher in pitch, and let the others fall away. English is a stress-timed language, so getting poʊ in the right place matters more to a listener than getting every vowel perfect.
Stress pattern oOoo — capital letters mark the stressed beats.
The common mispronunciation of “supposedly”
✗ Often said: /ˈsʌpɑːsedliː/ — the spelling, read straight off the page.
✓ Actually: /səˈpoʊzədliː/
Why the two come apart: the stress lands on the second syllable (“poʊ”), not on the first one — putting the beat at the front is the mistake almost everyone makes; also, the unstressed vowels flatten all the way down to /ə/ — English swallows them, so they never sound the way they are written; also, at least one vowel does not say what its spelling suggests — English vowel letters are not reliable here; also, a consonant letter takes an unexpected sound value here, so reading it "as written" comes out wrong.
This is why reading English aloud from spelling alone goes wrong so often: the letters of “supposedly” are not a reliable map of its sounds. The IPA is — each symbol stands for exactly one sound, every time.
“supposedly” sound by sound
“supposedly” is built out of 9 sounds. Say each one on its own first, slowly, then run them together at speed. Every sound links to a full guide with mouth position, the mistake learners make with it, and other words that use it.
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sHold the tongue tip near (not touching) the ridge behind the upper teeth and force a narrow stream of air down the groove of the tongue.
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əDo almost nothing: leave the tongue in its neutral resting position, mouth slightly open, and make the shortest, weakest possible vowel.
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pPress both lips together, build up air behind them, then release with a puff of air (aspiration) when the sound starts a stressed syllable.
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oʊStart with mid-back, lightly rounded lips and glide toward /ʊ/, tightening the rounding as you finish.
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zExactly the /s/ tongue position with voicing added, so the airflow buzzes.
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əDo almost nothing: leave the tongue in its neutral resting position, mouth slightly open, and make the shortest, weakest possible vowel.
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dSame tongue position as /t/ — tip on the ridge behind the upper teeth — but voice the sound and release it without aspiration.
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lTouch the tongue tip to the ridge behind the upper teeth and let the voiced air flow around the sides of the tongue.
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iːSpread the lips into a smile, push the front of the tongue high and forward, and hold the sound tense and long.
Questions people ask about “supposedly”
- How do you pronounce “supposedly”?
- “supposedly” is pronounced /səˈpoʊzədliː/, with the stress on the second syllable (poʊ). Press the US or UK button above to hear it spoken.
- How many syllables are in “supposedly”?
- “supposedly” has 4 syllables: sə · poʊ · zəd · liː. The stress pattern is oOoo.
- What is the common mispronunciation of “supposedly”?
- People read it off the spelling as /ˈsʌpɑːsedliː/, but it is actually /səˈpoʊzədliː/, because the stress lands on the second syllable (“poʊ”), not on the first one — putting the beat at the front is the mistake almost everyone makes.
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