Synonym word of yesser:

abject, accommodating, acquiescent, amenable, bowing down, comformable, complying, deferential, docile, domesticated, dutiful, giving-in, humble, ingratiating, lowly, malleable, meek, menial, nonresistant, nonresisting, obedient, obeisant, obeying, obsequious, passive, patient, pliable, pliant, resigned, servile, slavish, subdued, tame, tractable, uncomplaining, unresisting, yes, yielding