deadly

Meanings

• causing or capable of causing death
  • "a deadly enemy"
• of an instrument of certain death
  • "deadly poisons"
• extremely poisonous or injurious; producing venom
• involving loss of divine grace or spiritual death
  • "the seven deadly sins"
• exceedingly harmful
• (of a disease) having a rapid course and violent effect
• as if dead
• (used as intensives) extremely
  • "deadly dull"
  • "deadly earnest"

Synonyms

baneful, deathly, deucedly, devilishly, insanely, lethal, lifelessly, madly, mortal, pernicious, pestilent, venomous, virulent