Thesaurus.com
synonyms
  • definitions

deadliest

see definition of deadliest
  • adjcausing end of life
  • adjghostly
Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
Relevance
A-Z
Length
-
+

Synonyms for deadliest

adj causing end of life
  • bloody
  • carcinogenic
  • cruel
  • dangerous
  • destructive
  • fatal
  • harmful
  • lethal
  • malignant
  • mortal
  • murderous
  • noxious
  • pernicious
  • poisonous
  • savage
  • suicidal
  • toxic
  • violent
  • virulent
  • baleful
  • baneful
  • bloodthirsty
  • cannibalistic
  • death-dealing
  • deathly
  • deleterious
  • destroying
  • grim
  • homicidal
  • injurious
  • internecine
  • killing
  • mortiferous
  • pestiferous
  • pestilent
  • pestilential
  • ruthless
  • slaying
  • unrelenting
  • venomous

Antonyms for deadliest

  • benign
  • calm
  • gentle
  • harmless
  • healthy
  • helpful
  • kind
  • life-giving
  • nice
  • nonpoisonous
  • wholesome
  • animating
  • energizing
  • healthful
  • invigorating
  • lively
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.