Yellow-bellied
Part of speech: adjective
Definition: uncourageous pertaining to an animal or reptile that has a yellow belly.
Cowardly
Part of speech: adverb
Definition: In the manner of a coward.
Part of speech: adjective
Definition: Showing cowardice. Lacking in courage, unacceptably fearful, usually meant with some implication of a lack of consideration for others.
Example sentence: A penalty is a cowardly way to score.