ج ھ لj-h-l
(س) جَهِلَ يَجْهَلُ جَهْلًا وَجَهَالَةًjahila yajhalu jahlan wa-jahālatan: for the mind to be devoid of knowledge, not to know, to be ignorant. In Arabic the word jahl is used as the opposite of both knowledge (ʿilm) and forbearance (ḥilm). ﴿اَنْ تُصِيْبُوْا قَوْمًۢا بِجَهَالَةٍ﴾ (Al-Ḥujurāt 49:6)
جَاهِلٌjāhil pl. جٰهِلُوْنَjāhilūna (active participle, ism fāʿil): ignorant. ﴿وَاِذَا خَاطَبَهُمُ الْجٰهِلُوْنَ قَالُوْا سَلٰمًا﴾ (Al-Furqān 25:63)
جَاهِلِيَّةٌjāhiliyyah: the age or way of ignorance. ﴿اَفَحُكْمَ الْجَاهِلِيَّةِ يَبْغُوْنَ﴾ (Al-Māʾidah 5:50)
جَهُوْلٌjahūl (intensive form, ṣīghat al-mubālaghah, on the pattern of فَعُوْلfaʿūl): very ignorant. ﴿اِنَّهُۥ كَانَ ظَلُوْمًا جَهُوْلًا﴾ (Al-Aḥzāb 33:72)