asynchronous
/eɪˈsɪŋ.kɹə.nəs/adjective
asynchronous is spelled A-S-Y-N-C-H-R-O-N-O-U-S. The wrong spelling people search most is asynchronus: about 100 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 73 of all searches for the word. Asynchronous is an adjective meaning “Not synchronous; occurring at different times”.
How many letters and syllables are in asynchronous?
| Letters | 12: A-S-Y-N-C-H-R-O-N-O-U-S |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 1 million words; the 33,636th most frequent word form |
| Wrong spellings searched | 1; the most searched, asynchronus, about 100 Bing searches a month (all of them) |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026); rhymes and same-letter words are computed by PlainSpell from its own word list.
How do you spell asynchronous?
Asynchronous is spelled A-S-Y-N-C-H-R-O-N-O-U-S. One wrong spelling is searched or written often enough to measure; together they are about 1 in 73 of the searches for asynchronous in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is asynchronous?
Asynchronous appears about once in every 1 million words in written English, the 33,636th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce asynchronous?
- US /eɪˈsɪŋ.kɹə.nəs/
Asynchronous has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-uk-asynchronous.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with asynchronous?
One word on PlainSpell end in the same sounds as asynchronous from its last stressed vowel (/ɪŋkɹənəs/):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
What does asynchronous mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not synchronous; occurring at different times.
- 2
Allowing the node, program or thread of interest to continue during processing.
- 3
Having many actions occurring at a time, in any order, without waiting for each other.
Near-synonym: in parallel
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate asynchronous?
Wiktionary records 2 abbreviations of asynchronous: async, asynch.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Asynchronous in Spanish, French, German and Portuguese
In the sense not synchronous:
| Language | Words |
|---|---|
| French | asynchrone |
| Portuguese | assíncrono |
| Spanish | asíncrono, asincrónico |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does asynchronous come from?
From a- + synchronous.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).