مُسْتَمِرٌّ
1.
act. particle n. of 10, q. v.
3.
سِحْرٌ مُسْتَمِرٌّ [in the Qur'an, 54:2,] En-chantment going on: or having one continuous course: or continuing in the same manner: or continuing in a regular, uniform, or constant, course: (Mgh:) or passing away, and vain, or ineffectual: or (assumed tropical:) strong: (K:) or bitter. (TA.)
4.
فِى يَوْمِ نَحْسٍ مُسْتَمِرٍّ [in the Qur'an, 54:19,] In a day of ill fortune that was lasting, or continual: (Zj, K:) or of which the evil, (K:) or ill luck, (TA,) was continual; (K, TA:) or effective, (K, * TA,) with respect to that which it was ordered and constrained to accomplish: (K:) or (assumed tropical:) potent in its evil fortune: or bitter: or in a Wednesday that did not come round again in the month: (K:) or in the last Wednesday of the month of Safar. (TA.)