Skip to content
OneKitly

lethal

adjectivenounnouncommon in dialogue

  • //ˈliː.θəl//

Of, pertaining to, or causing death; deadly; mortal; fatal.

adjective

  1. 1

    Of, pertaining to, or causing death; deadly; mortal; fatal.

    Whether modern, industrial man is less or more warlike than his hunter-gatherer ancestors is impossible to determine. The machine gun is so much more lethal than the bow and arrow that comparisons are meaningless.

Etymology

Learned borrowing from Latin lētālis (“deadly, mortal, fatal”), improperly written lēthālis, from lētum (“death”), improperly written as lēthum, from a supposed connection with Ancient Greek λήθη (lḗthē, “oblivion, forgetfulness”).

noun

  1. 1

    Any weapon that causes death.

  2. 2

    An allele that causes the death of the organism that carries it.

noun

  1. 1

    One of the higher alcohols of the paraffine series obtained from spermaceti as a white crystalline solid.

Etymology

Abbreviation of “lauric acid ethereal salt”, so called because it occurs in the ethereal salt of lauric acid.

Forms

plural
lethals
comparative
more lethal
superlative
most lethal
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).