Ma'anar ƙamus na kalmar "marasa jituwa" ita ce:Ba za a iya wanzuwa ko aiki tare cikin jituwa ko gamsuwa ba; gaba da juna ko rashin iya haɗawa: misali, "Ra'ayoyin biyu ba su dace ba." bai dace da ko daidai da wani yanayi, manufa, ko mutum ba: misali, "Wannan maganin bai dace da wasu abinci ba." musamman tsarin, na'ura, ko software: misali, "Wannan firinta bai dace da tsarin aikin kwamfuta ta ba."