Assuming the role means to take on a specific position or responsibility. Antonyms for assuming the role include relinquishing, surrendering, abdicating, resigning, disavowing, renouncing, and rejecting. Relinquishing implies giving up something willingly, surrendering suggests yielding under pressure or force, and abdicating means formally handing over power or authority. Resigning entails stepping down from a position voluntarily, disavowing means denying a previously held belief or allegiance, and renouncing denotes giving up something valuable or important. Rejecting implies refusing an offer or proposal. All these antonyms convey the idea of giving up or rejecting a position, rather than assuming it.