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deadliness

UK /ˈdɛdlɪnəs/noun

deadliness is spelled D-E-A-D-L-I-N-E-S-S: 10 letters and 3 syllables. It appears about once in every 22 million words in written English, the 141,699th most frequent word form (wordfreq, 2021 data). As a noun, deadliness means “The quality of being deadly” (English Wiktionary, September 2026). The plural of deadliness is deadlinesses.

How many letters and syllables are in deadliness?

Letters10: D-E-A-D-L-I-N-E-S-S
Syllables3 (from its American pronunciation)
In writingabout once in every 22 million words; the 141,699th 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 deadliness?

Deadliness appears about once in every 22 million words in written English, the 141,699th 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 deadliness?

  • UK /ˈdɛdlɪnəs/

Deadliness 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).

Forms of deadliness

  • deadlinesses plural

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

What does deadliness mean?

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

noun

  1. 1

    The quality of being deadly.

  2. 2

    The degree to which a thing is deadly.

  3. 3

    Tedium, or the quality of being boring.

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

Where does deadliness come from?

From Middle English dedlinesse, deadlicnesse, from Old English dēadlīcnes, equivalent to deadly + -ness.

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

What to look up after deadliness