noxious
nox·ious/ˈnɑkʃəs/adjective
noxious is spelled N-O-X-I-O-U-S: 7 letters and 2 syllables (nox·ious). It appears about once in every 1 million words in written English, the 32,393rd most frequent word form (wordfreq, 2021 data). As an adjective, noxious means “Harmful; injurious” (English Wiktionary, September 2026).
How many letters and syllables are in noxious?
| Letters | 7: N-O-X-I-O-U-S |
|---|---|
| Syllables | 2: nox·ious |
| In writing | about once in every 1 million words; the 32,393rd most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
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); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is noxious?
Noxious appears about once in every 1 million words in written English, the 32,393rd 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 noxious?
- UK /ˈnɒkʃəs/
- US /ˈnɑkʃəs/
Noxious has 2 syllables, split nox·ious in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-noxious.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with noxious?
One word on PlainSpell end in the same sounds as noxious from its last stressed vowel (/ɑkʃəs/):
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).
Forms of noxious
- more noxious comparative
- most noxious superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does noxious mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Harmful; injurious.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Noxious in Spanish, French, German and Portuguese
In the sense harmful:
| Language | Words |
|---|---|
| French | nocif |
| German | Schad-, schädlich |
| Portuguese | nocivo, daninho |
| Spanish | nocivo, nocible, nocente |
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 noxious come from?
From Latin noxius (“hurtful, injurious”), from noxa (“hurt, injury”), from nocere (“to hurt, injure”); see nocent.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).