acquiescent

adj. submissive, yielding, compliant

Adjective
1. willing to carry out the orders or wishes of another without protest; "too acquiescent to challenge authority"; "a gentle and biddable soul"; "children compliant with the parental will"
(synonym) biddable, compliant
(similar) obedient

v. acquiesce, accept without question; yield

(a.)
Resting satisfied or submissive; disposed tacitly to submit; assentive; as, an acquiescent policy.
  

Synonyms and related words:
abject, accepting, accommodating, accordant, acquiescing, adaptable, adapting, adaptive, adjustable, adjusting, affirmative, agreeable, agreed, agreeing, alacritous, amenable, approving, ardent, assentatious, assenting, complaisant, compliable, compliant, complying, conceding, concessive, conformable, conforming, consentient, consenting, content, cooperative, devoted, disposed, docile, duteous, dutiful, eager, endorsing, enthusiastic, fain, faithful, favorable, favorably disposed, favorably inclined, flexible, forward, game, humble, in the mind, in the mood, inclined, law-abiding, loyal, malleable, meek, minded, nondissenting, nonresistant, nonresisting, nonresistive, nothing loath, obedient, other-directed, passive, permissive, plastic, pliant, predisposed, prompt, prone, quick, ratifying, ready, ready and willing, receptive, reconciled, resigned, responsive, sanctioning, servile, submissive, subservient, supine, tractable, unassertive, uncomplaining, ungrudging, unloath, unrefusing, unreluctant, unresistant, unresisting, well-disposed, well-inclined, willed, willing, willinghearted, yielding, zealous,