complaisant
/kəm-ˈplā-sᵊnt/
adjective
marked by an inclination to please or oblige
tending to consent to others' wishes
amiable good-natured obliging complaisant mean having the desire or disposition to please. amiable implies having qualities that make one liked and easy to deal with. good-natured implies cheerfulness or helpfulness and sometimes a willingness to be imposed upon.
French noun phrase
complaisant husband : cuckold who accepts his wife's infidelity