|Noah Webster's Dictionary|
1. (a.) Wanting courage; basely or weakly timid or fearful; pusillanimous; spiritless.
2. (a.) Proceeding from fear of danger or other consequences; befitting a coward; dastardly; base; as, cowardly malignity.
3. (adv.) In the manner of a coward.
Cowardly (1 Occurrence)
Revelation 21:8 But for the cowardly, unbelieving, sinners, abominable, murderers, sexually immoral, sorcerers, idolaters, and all liars, their part is in the lake that burns with fire and sulfur, which is the second death." (WEB NAS RSV NIV)