h/h/
Push a stream of air from your throat through your open mouth. No tongue or lip contact.
How to pronounce hazardous in American English
HA·zer·duhs
Start here
Americans pronounce hazardous as HA-zer-duhs (/ˈhæzərdəs/). In "hazardous", 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, the kind of sound shift that makes everyday speech feel effortless. So instead of HA·zer·tuhs, you get HA·zer·duhs. Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "He completed the certification course for handling hazardous materials safely".
Now you try.
Record yourself saying "hazardous" and play it back. The mic stays on your device — nothing's uploaded.
Sound by sound
Every sound in "hazardous".
3 syllables, 7 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
a/æ/
Drop the jaw noticeably. Keep the body of the tongue low and forward, and don't let the back of the tongue raise toward the soft palate. Pull the lip corners back slightly, almost a starting smile.
z/z/
Same position as S, but add vocal cord vibration. Feel the buzz.
er/ər/
Relax your mouth and lift the tongue back and up. Keep the lips neutral.
d/d/
FlapQuickly bounce the front of your tongue against the roof of your mouth. Same as Flap T — a quick tap without stopping airflow.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
s/s/
Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.
In real conversation
Hear "hazardous" in the wild.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
Find another
Looking for a different word or sentence?
Search the entire library
/
Press / anywhere to focus the search box.
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 "hazardous", 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.
HA-zer-tuhs→HA·zer·duhs
02
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch HA — keep everything else short and quick.
ha·ZER·DUHS→HA·zer·duhs
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.
HA·zer·DUHS→HA·zer·duhs
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 "hazardous" stressed in American English?
Stress falls on the first syllable — say "HA" with a longer, fuller vowel and keep every other syllable short and quick. The respell "HA-zer-duhs" 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 "hazardous"?
In American English, when /t/ sits between two vowels with the second one unstressed, it turns into a quick D-like flap. So "hazardous" sounds closer to "HA-zer-duhs" 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 "hazardous" 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 "HA-zer-duhs" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "hazardous"?
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.
Stop reading about "hazardous". Start saying it.
SayWaader is the AI pronunciation coach for American English. Practice 5 minutes a day. Get a 5-axes accent assessment. Sound like you live here.