The phrase "lent one's name to" refers to a person using their reputation or celebrity status to endorse or support a cause, product or service. The antonyms for "lent one's name to" would include phrases such as "disavowed," "disowned," "rejected," "denounced," or "condemned." These words suggest a fundamental rejection of association or support, often due to a disagreement with the cause, product or service. While lending one's name can bring attention and positive perception, significant risk can arise if the cause, product or service involved falls out of favour or turns controversial. Therefore, it is important to be mindful of the consequences of such endorsements.