Invalid [inˈvaləd], an adjective meaning "not true because based on erroneous information or unsound reasoning; not conforming to the correct format or specifications," according to Oxford Dictionary.
Input [\ˈin-ˌpu̇t\] , a noun meaning "the means by which or the point at which an input (as of energy, material, or data) is made," according to Merriam-Webster Dictionary.
