Ma'anar ƙamus na kalmar "rashin fahimta" shine rashin fahimta ko kuskuren imani game da wani abu. Yana nufin yin kuskuren fassara ko ɓata wani abu, sau da yawa saboda rashin bayani ko rashin fahimta. Rashin fahimta na iya faruwa a yanayi daban-daban, kamar a cikin sadarwar mutane, shari'a, binciken kimiyya, da rashin fahimtar al'adu. Yana iya haifar da rudani, rikici, da kurakurai, kuma yana iya buƙatar bayani ko gyara don warwarewa.