Definition of "deathly" in English

adjective

1. Appearing as though dead, or on the verge of death.

   • He has a deathly pallor.

2. Deadly, fatal, causing death.

3. Extreme.

   • He has a deathly fear of crocodiles.

adverb

1. In a way that resembles death.

   • He was deathly pale.

2. Extremely, dreadfully.

   • The water was deathly cold.
   • He was deathly afraid of crocodiles.