Cowardice

Synonyms for coward:
un lâche (pronounced lash)
un trouillard (troo - yar)
un froussard (froo - ss - ar)
un couard (coo - ar)
une poule mouillée (pool - moo - yay), literally "a wet chick"
une fillette (fee - yet), literally "a little girl"

La trouille and la frousse both mean the same as la peur =fear.