مَجْهَلٌ

An affair, or an event, or a case, and a land, and a habit, a property, a quality, a practice, or an action, that induces a man to believe a thing to be different from what it is. (Er-Rághib, TA.) A desert (مَفَازَةٌ) in which are no signs of the way. (S.) And أَرْضٌ مَجْهَلٌ A land in which are no signs of the way: (TA:) or in which one will not go aright (K, TA) unless by means of the [signs of the way called] ارَام: (TA:) plural مَجَاهِلُ, which is the opposite of مَعَالِمُ: (TA:) according to the K, it has neither dual nor plural; but it has both, as 'Iyád and others have affirmed. (MF, TA.)