Skip to main content

hazardous

/ˈhæ.zɚ.dɪs/adjective

hazardous is spelled H-A-Z-A-R-D-O-U-S: 9 letters and 3 syllables. It appears 5.1 times per million words in written English, the 11,015th most frequent word form (wordfreq, 2021 data). As an adjective, hazardous means “Risky; dangerous; with the nature of a hazard” (English Wiktionary, September 2026).

How many letters and syllables are in hazardous?

Letters9: H-A-Z-A-R-D-O-U-S
Syllables3 (from its American pronunciation)
In writing5.1 times per million words; the 11,015th most frequent word form
Wrong spellings searchednone measured in search

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).

How common is hazardous?

Hazardous appears 5.1 times per million words in written English, the 11,015th 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 hazardous?

  • US /ˈhæ.zɚ.dɪs/
  • US /-dəs/

Hazardous has 3 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: LL-Q1860_(eng)-Vininn126-hazardous.wav, Wikimedia Commons (author and licence on each file's page).

Forms of hazardous

  • more hazardous comparative
  • most hazardous superlative

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does hazardous mean?

The meanings the English Wiktionary records, quoted as written there (source below).

adjective

  1. 1

    Risky; dangerous; with the nature of a hazard.

  2. 2

    rareOf or involving chance.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Hazardous in Spanish, French, German and Portuguese

LanguageWords
Frenchhasardeux (risky, dangerous, with the nature of a hazard)
Germangefährlich, Gefahr-, Gefahren- (risky, dangerous, with the nature of a hazard)
Spanishbrígido, fortunal, azaroso (risky, dangerous, with the nature of a hazard), fortunoso (of or involving chance)

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 hazardous come from?

From Middle French hasardeux, equivalent to hazard + -ous.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after hazardous