adjective. ['ˌɪnˈkʌmbənt'] necessary (for someone) as a duty or responsibility; morally binding.
adjective. ['ˌɪnˈkʌmbənt'] lying or leaning on something else.
noun. ['ˌɪnˈkʌmbənt'] the official who holds an office.
adjective. ['ˌɪnˈkʌmbənt'] currently holding an office.