How to Pronounce “asynchronous”

American (US)

/eɪˈsɪŋ.kɹə.nəs/

British (UK)

/eɪˈsɪŋ.kɹə.nəs/

adjective — Not happening at the same time; allowing work to continue while waiting for a result.

Example: The upload is asynchronous, so the page stays responsive.

Antonyms: synchronous

Where the stress falls. “asynchronous” has 4 syllables, and the transcription /eɪˈsɪŋ.kɹə.nəs/ puts the primary stress mark (ˈ) before the second one — so the second syllable is the longest and loudest. The others are said quickly and lightly.

An unstressed vowel reduces to schwa. /eɪˈsɪŋ.kɹə.nəs/ contains a schwa /ə/ — the short, neutral “uh” that English unstressed syllables collapse into. Saying /ə/ there, instead of the vowel the spelling suggests, is most of what makes the word sound native.

What does "asynchronous" mean?

asynchronous (adjective): Not happening at the same time; allowing work to continue while waiting for a result. For example — The upload is asynchronous, so the page stays responsive.

How do you pronounce "asynchronous" in American vs British English?

Both accents use the same sequence of phonemes for "asynchronous", /eɪˈsɪŋ.kɹə.nəs/, so the difference you hear is in how the vowels are coloured rather than in which sounds are used. Play both on this page to compare.

What is the IPA transcription of "asynchronous"?

/eɪˈsɪŋ.kɹə.nəs/ in American English, /eɪˈsɪŋ.kɹə.nəs/ in British English.

Which syllable is stressed in "asynchronous"?

“asynchronous” has 4 syllables, and the transcription /eɪˈsɪŋ.kɹə.nəs/ puts the primary stress mark (ˈ) before the second one — so the second syllable is the longest and loudest. The others are said quickly and lightly.