deathly
1. [ adjective ] having the physical appearance of death
Synonyms: deathlike
Examples:

"a deathly pallor"

Related terms: dead
2. [ adverb ] in the manner of death
Examples:

"he was deathly pale"

3. [ adjective ] causing or capable of causing death
Synonyms: deadly mortal
Examples:

"a fatal accident" "a deadly enemy" "mortal combat" "a mortal illness"

Related terms: fatal
Similar spelling:   detail
  deadly