To rest satisfied, or apparently satisfied, or to rest without opposition and discontent (usually implying previous opposition or discontent); to accept or consent by silence or by omitting to object; -- followed by in, formerly also by with and to.
To concur upon conviction; as, to acquiesce in an opinion; to assent to; usually, to concur, not heartily but so far as to forbear opposition.
The strongest and most effective force in guaranteeing the long-term maintenance of power is not violence in all the forms deployed by the dominant to control the dominated, but consent in all the forms in which the dominated acquiesce in their own domination. Robert Frost
Acceptance does not mean that you placidly acquiesce to the myriad injustices that are all around you. In fact, that you are incensed about these injustices is the very reason you need to try your level best to 'right' these 'wrongs.' Srikumar Rao