Refusing to apologize to someone's face because you aren't brave enough is an example of cowardice.
Origin of cowardiceMiddle English and amp; Old French couardise ; from couard: see coward
Origin of cowardiceMiddle English cowardise, from Old French couardise, alteration of couardie, from couard, coward; see coward.
(countable and uncountable, plural cowardices)
- Lack of courage.