Abdicant is a term that refers to someone who renounces or gives up their position or authority. Synonyms for abdicant include renouncer, relinquisher and disavower. Other words that may be used to convey similar meaning include deserter, traitor, or defector depending on the context in which abdicant is used. In addition, some may use words such as surrenderer, ceder or resigner to describe someone who has given up their power or control. Overall, synonyms for the word abdicant are generally used to describe someone who has relinquished or renounced their authority.