cowardly

raukkamainen Showing cowardice; lacking in courage; basely or weakly fearful.
Shakespeare

The cowardly rascals that ran from the battle.

The cowardly rashness of those who dare not look danger in the face.

I love to follow them, but not so cowardly, as my life remaine thereby in subjection.

(..) men who cowardly and hypocritically subscribe orthodox creeds, whilst they teach a different kind of doctrine!