Causing or able to cause death; very dangerous or likely to kill.
Examples:
The last three days had certainly been deadly for her.'I am Envy,' the Deadly Sin told him.'I am Gluttony,' the Deadly Sin replied.
Synonyms:
Antonyms:
Deathly
/ˈdeθli/
Causing or related to death or resembling death.
Examples:
The silence in the hall was deathly, unnerving all present.His complexion turned a deathly shade upon hearing the news.A deathly aroma lingered in the room, unsettling the guests.
Synonyms:
Antonyms:
Ways to tell them apart:
Deadly often refers to something that can kill or is associated with causing death.
Deathly is more about resembling death or being related to death in a metaphorical sense.
When you think of deadly, imagine something with lethal potential, like poison.
Deathly can imply a state or atmosphere, like a deathly silence, which isn't about literal death but an eerie stillness.
Remember, deadly is often describing a threat or danger, while deathly describes a condition, appearance, or effect.