{# Single source of truth for the GA4 page_type dimension. Must stay ABOVE extra_head: synonymguide configures gtag inside that block and reads this global, while syllablesworld configures it at the end of . #}

Synonyms for

Lethal

Adjective / ˈli:θʌl / Another word for lethal — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

causing or capable of causing death

Synonyms & similar words

deadly deadly fatal mortal toxic poisonous destructive dangerous harmful injurious lethiferous lethargic lethiferous deleterious pernicious virulent venomous noxious baneful ruinous deathly

Synonyms by register

Formal

fatal deadly mortal terminal

Informal

killer deadly wicked

Literary

bane pestilential

Antonyms

harmless safe nonlethal innocuous gentle mild

Common collocations

  • lethal injection
  • lethal dose
  • lethal weapon
  • lethal force
  • lethal blow
  • lethal outcome
  • lethal gas

Word family

noun lethality
adverb lethally

Usage note

Lethal primarily refers to something that can cause death. It is often used in formal contexts, especially in legal or medical settings.

Compare "lethal" with another word →

Example sentences

  1. The venom of a snake is lethal.
  2. Drinking bleach can be lethal.
  3. The virus is lethal and can cause death.
  4. The soldier received a lethal wound in battle.
  5. The shark has a lethal bite.

Try these popular words

the and that for you with was this are have not from

Practice

Play the Word Synonyms game · Choose level (start near 1)

Worksheets

Grade 4 · Grade 5 · Grade 6

Topics

Guides

Explore more words