Select the antonym of
"to contend"

* To contend means to struggle, surmount, compete, or assert a position in an argument or conflict.
To comply means to act in accordance with a wish or command; to yield or acquiesce, which is the direct opposite of contending/struggling against something.

To oppugn means to call into question or dispute.

To grapple means to engage in a close fight or struggle without weapons.

To vie means to compete eagerly with someone in order to achieve something.