Wiktionary

deadliness

English edit

Etymology edit

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

Pronunciation edit

Noun edit

deadliness (usually uncountable, plural deadlinesses)

  1. Synonym of lethality
    1. The quality of being deadly.
    2. The degree to which a thing is deadly.
      Related terms: death, deathliness, deathly
  2. (figurative, hyperbolic) Tedium, or the quality of being boring.
    Related terms: to bore (someone) to death
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