adventitious
/ˌæd.vənˈtɪʃ.əs/adjective
adventitious is spelled A-D-V-E-N-T-I-T-I-O-U-S: 12 letters. It appears about once in every 11 million words in written English, the 99,289th most frequent word form (wordfreq, 2021 data). As an adjective, adventitious means “From an external source; not innate or inherent, foreign” (English Wiktionary, September 2026).
How many letters and syllables are in adventitious?
| Letters | 12: A-D-V-E-N-T-I-T-I-O-U-S |
|---|---|
| In writing | about once in every 11 million words; the 99,289th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is adventitious?
Adventitious appears about once in every 11 million words in written English, the 99,289th 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 adventitious?
- /ˌæd.vənˈtɪʃ.əs/
- /ˌæd.vɛnˈtɪʃ.əs/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-ncalif-adventitious.ogg, LL-Q1860_(eng)-Vininn126-adventitious.wav, Wikimedia Commons (author and licence on each file's page).
Forms of adventitious
- more adventitious comparative
- most adventitious superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does adventitious mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
From an external source; not innate or inherent, foreign.
- 2
Accidental, additional, appearing casually.
- 3
Not congenital; acquired.
- 4
Developing in an unusual place or from an unusual source.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Adventitious in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | acquis, adventice, exogène , aléatoire |
| Portuguese | adventício |
| Spanish | adventicio |
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 adventitious come from?
From Medieval Latin adventītius (“coming from abroad, extraneous”), a corruption of Latin adventīcius (“foreign, strange, accidental”), from adventus (“arrival, coming, approach, advent”) + -īcius (suffix forming adjectives), from adveniō (“to arrive”) + -tus (suffix forming action nouns).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).