ACQUIESCENT
acquiescent, biddable
(adjective) willing to carry out the orders or wishes of another without protest; “too acquiescent to challenge authority”; “a gentle, biddable soul”
Source: WordNet® 3.1
Etymology
Adjective
acquiescent (comparative more acquiescent, superlative most acquiescent)
willing to acquiesce, accept or agree to something without objection, protest or resistance
resting satisfied or submissive; disposed tacitly to submit
Synonyms
• (conceding to a sin or crime): complicit
Source: Wiktionary
Ac`qui*es"cent, a. Etym: [L. acquiescens, -; p. pr.]
Definition: Resting satisfied or submissive; disposed tacitly to submit;
assentive; as, an acquiescent policy.
Source: Webster’s Unabridged Dictionary 1913 Edition