Word.ws English Dictionary

deadliness

UK/ˈdɛdlɪnəs/

deadliness noun: the quality of being deadly.

Noun

deadliness (usually uncountable, plural deadlinesses)

  1. (usually) The quality of being deadly.
    Synonyms:
    fatality
  2. (usually) The degree to which a thing is deadly.
  3. (excessive, figuratively, usually) Tedium, or the quality of being boring.

Synonyms of deadliness

Forms of deadliness

pluraldeadlinesses

Origin of deadliness

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

Questions about deadliness

What does deadliness mean?
Deadliness means the quality of being deadly.
What part of speech is deadliness?
Deadliness is a noun.
How do you pronounce deadliness?
Deadliness is pronounced /ˈdɛdlɪnəs/ (UK).
What is the plural of deadliness?
The plural of deadliness is deadlinesses.

Words near deadliness in the dictionary

  1. deadline fighters
  2. deadlined
  3. deadliner
  4. deadliners
  5. deadlines
  6. deadliness
  7. deadlinesses
  8. deadling
  9. deadlings
  10. deadlining
  11. deadlink

Source and license

Adapted from Wiktionary: deadliness (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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