Unresistant is a word that describes a person or thing that fails to resist a particular force or influence. There are several synonyms for the word unresistant which include passive, acquiescent, compliant, yielding, subservient, and pliant. Passive refers to a person or thing that is unresponsive or without action. Acquiescent implies a subdued submission or agreement without protest. Compliant denotes a willingness to conform or obey. Yielding suggests a readiness to give in or surrender. Subservient implies an excessive willingness to serve or obey. Pliant suggests a flexibility or adaptability to change. Using such synonyms can help broaden the scope of expression, and add variety, depth, and complexity to one's vocabulary.