How to pronounce sincere in American English
sihn·SEER
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Americans pronounce sincere as sihn-SEER (/sɪnˈsɪr/). The R is one continuous sound with the vowel — the tongue curls back rather than rolling. Stress falls on the second syllable — keep everything else short and quick.
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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 second syllable, not the others. Stretch SEER — keep everything else short and quick.
SIHN·seer→sihn·SEER
02
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 "sincere" stressed in American English?
Stress falls on the second syllable — say "SEER" with a longer, fuller vowel and keep every other syllable short and quick. The respell "sihn-SEER" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
How do I pronounce the R in "sincere"?
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.
Is the American pronunciation of "sincere" 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 "sihn-SEER" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.