Crossword Genius

Rattlesnakes and adders are both ____s (5)

Ross

I believe the answer is:

viper

(Other definitions for viper that I've seen before include "spiteful person" , "treacherous type" , "Malicious person" , "Adder" , "A poisonous snake or treacherous person" .)

I've seen this clue in The Sunday Times and The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.