Pronunciation: [ ak-wee-es ]
Definition: verb
to assent tacitly; submit or comply silently or without protest; agree; consent

Origin: Early 17th century; Latin
Etymology: from Latin acquiescere, from ad- ‘to, at’ + quiescere ‘to rest’
Usage:

Synonyms:
accede
cave in
comply
concur
conform
give in
go along
Antonyms:
deny
differ
oppose
refuse
reject
decline
disagree
disallow
disapprove
disarrange
disorder
dispute
dissent
Example: Robby was ready to acquiesce halfheartedly in the new plan for the company.