Synonyms for Debasing:

adj.

all (adjective)
degrading.

n.

debasing (noun)
degrading, dishonorable, dishonourable.

v.

cheapening (verb)
diminishing, paring, belittling, Discounting, deflating, devaluing, Cheapening, reducing, slashing, devaluating, cutting, depreciating, trimming, marking down, shaving.
contaminating (verb)
contaminating, Doctoring, tampering with.
depressing (verb)
decreasing, Attenuating, sinking, depressing, lowering.
misusing (verb)
ill-using, Defiling, Maltreating, Abusing, Despoiling, ill-treating, misusing, Violating.
perverting (verb)
demoralizing, twisting, adulterating, Desecrating, Distorting, Seducing, Depraving, warping, Debauching, Perverting, corrupting, degrading, Deforming, Vitiating, Abasing.
underestimating (verb)
underestimating, undervaluing.

Other synonyms:

Other relevant words:
dishonorable, dishonourable.