lethally

/ˈliːθəli/
adverb
  1. In a way that causes death or is capable of causing death.
    • The soldier was trained to use the weapon lethally only when necessary.
    • Some mushrooms are lethally poisonous if eaten.
    • The snake struck lethally, injecting venom into its prey.
Antonyms
What does "lethally" mean? | whatsthatwordmean | whatsthatwordmean