recreant
1. [ noun ] an abject coward
Synonyms: craven poltroon
Related terms: coward
2. [ adjective ] lacking even the rudiments of courage; abjectly fearful
Synonyms: craven
Examples:

"the craven fellow turned and ran" "a craven proposal to raise the white flag" "this recreant knight"- Spenser

Related terms: cowardly
3. [ adjective ] having deserted a cause or principle
Synonyms: renegade
Examples:

"some provinces had proved recreant" "renegade supporters of the usurper"

Related terms: disloyal
4. [ noun ] a disloyal person who forsakes his cause or religion or political party or friend etc.
Synonyms: apostate renegade ratter turncoat deserter
Related terms: quitter abandon denounce rat apostatize