infectiousness
noun
infectiousness is spelled I-N-F-E-C-T-I-O-U-S-N-E-S-S: 14 letters. It appears about once in every 38 million words in written English, the 189,524th most frequent word form (wordfreq, 2021 data). As a noun, infectiousness means “The state or condition of being infectious” (English Wiktionary, September 2026).
How many letters and syllables are in infectiousness?
| Letters | 14: I-N-F-E-C-T-I-O-U-S-N-E-S-S |
|---|---|
| In writing | about once in every 38 million words; the 189,524th 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 infectiousness?
Infectiousness appears about once in every 38 million words in written English, the 189,524th 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).
What does infectiousness mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The state or condition of being infectious.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Infectiousness in Spanish, French, German and Portuguese
In the sense state or condition of being infectious:
| Language | Words |
|---|---|
| French | infectiosité, nature infectieuse |
| German | Infektiosität, Ansteckungsfähigkeit, Ansteckungsgefahr |
| Portuguese | infetuosidade, infecciosidade |
| Spanish | infectividad |
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 infectiousness come from?
From infectious + -ness.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).