The definition of cowardice is lacking in courage.
A cowardly action.
A tendency to be cowardly, craven, etc.
A reason for dread or apprehension:
Find another word for chickenheartedness. In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for chickenheartedness, like: cowardice, cowardliness, cravenness, dastardliness, faint-heartedness, funk, pusillanimity, unmanliness, gutlessness, yellowness and yellow streak.