A coward
Also stated as "chicken-livered," chicken-hearted means cowardly. Prone to run from trouble. Cowardly.
fearful, scared, "chicken", cowardly, spineless, gutless, "lily-livered", dastardly, and pusillanimous
faint-hearted, scared, spineless, soft, chicken, fearful
"Yellow-bellied" is a compound adjective used to describe a cowardly person. Others are "lily-livered" and "chicken-hearted."
The opposite would be cowardly, afraid, fearful, faint-hearted, or chicken.
The What a Cartoon Show - 1995 Courage the Cowardly Dog The Chicken from Outer Space 1-24 was released on: USA: 18 February 1996
Chicken is not an idiom, because an idiom is a phrase. Chicken, meaning afraid or cowardly, is a slang term. Slang is when you have a word (sometimes a couple of words) that local people use in a different way from the accepted meaning. Americans call someone 'chicken' not because they are domesticated birds that lay eggs and taste good fried, but because they act afraid.
Of course it can. People think chickens are cowardly, for example, but they're no more afraid than any other prey animal. We still call people "chicken" when they're afraid, though!
Courage the Cowardly Dog - 1999 Last of the Starmakers Son of the Chicken from Outer Space 4-10 was released on: USA: 1 November 2002
Courage the Cowardly Dog - 1999 Revenge of the Chicken from Outer Space Journey to the Center of Nowhere 1-12 was released on: USA: 9 June 2000
It depends on what you mean. If you are referring to the food product, a chicken is "un poulet" in French. If you are referring to the living animal, a chicken is "une poule". If you are referring to the slang term for a person who is cowardly, a chicken is "un froussard" or "une froussarde".
Well a chicken is an animal that lays eggs. To be referred to as a chicken mean they are calling you cowardly or afraid. I think this might have something to do with the fact that when chickens get scared they run and slap their wings and make a lot of noise.