إِقْمَطَرَّ It (a day, Ṣ) was, or became, distressful, or calamitous. (Ṣ, Ḳ.)

قِمَطْرٌ and قِمَطْرَةٌ (Ṣ, Mṣb, Ḳ) and with teshdeed, [i. e. قِمَّطْرٌ and قِمَّطْرَةٌ,] but this pronunciation is extr., (Ḳ,) or, accord. to Yaạḳoob, (Ṣ,) or ISk, (TA,) not allowable, (Ṣ, TA,) A repository for books or writings, (Ṣ, Mṣb, Ḳ, TA,) resembling a سَفَط, [q. v., (in the TA, سقط, which is evidently a mistake,)] made of reeds woven together: (TA:) the first word is fem., like the second, as well as masc.: (Mṣb:) pl. قَمَاطِرُ. (Ṣ, Mṣb.)

يَوْمٌ قَمْطَرِيرٌ, andقُمَاطِرٌ↓, (Ṣ, Ḳ,) andمُقْمَطِرٌّ↓, (TA,) A distressful, or calamitous, day: (Ṣ, Ḳ:) or a day that makes one knit the brow, or contract the skin between the eyes: so the first is explained by some as occurring in the Ḳur lxxvi. 10. (TA.)

شَرٌّ قَمْطَرِيرٌ, (TA,) andقُمَاطِرٌ↓, andقَمْطَرٌ↓, (Lth, TA,) andمُقْمَطِرٌّ↓, (TA,) Intense evil. (Lth, TA.)