unchivalrous

adjective

1. having the qualities of chivalry, as courage, courtesy, and loyalty.
2. considerate and courteous to women; gallant.
3. gracious and honorable toward an enemy, especially a defeated one, and toward the weak or poor.

adjective

1. gallant; courteous
2. involving chivalry

adj.1821, from un- (1) “not” + chivalrous. Related: Unchivalrously. Alternative unchivalric is recorded from 1851. adj.mid-14c., from Old French chevaleros “knightly, noble, chivalrous,” from chevalier (see chevalier; also cf. chivalry). According to OED, obsolete in English and French from mid-16c. Not revived in French, but brought back in English late 18c. by romantic writers fond of medieval settings.