Ma'anar ƙamus na kalmar "marasa jiki" ita ce "rashin jiki ko siffa; marar jiki." Yana nufin wani abu da ba ya tattare da kwayoyin halitta kuma ba shi da samuwar zahiri ko siffa. Ana amfani da kalmar sau da yawa a cikin mahallin metaphysical ko na ruhaniya, yana nufin abubuwa kamar fatalwowi, ruhohi, ko rayuka waɗanda aka gaskata suna wanzuwa ba tare da siffa ta zahiri ba.
