قَاسِطٌ

Declining, or deviating, from the right course; acting unjustly, wrongfully, injuriously, or tyrannically: plural قَاسِطُونَ (S, M, Mgh, TA) and قُسَّاطٌ. (TA.) You say, هُوَ قَاسِطٌ غَيْرُ مُقْسِطٍ He is declining, or deviating, from the right course; &c.: not acting equitably, or justly. (TA.) And it is said in the Qur'an, 72:15,] أَمَّا الْقَاسِطُونَ فَكَانُوا لِجَهَنَّمَ حَطَبًا [As for the deviators from the right course, they shall be fuel for hell]. (S, M, Mgh.) [See also عَادِلٌ.]

القَاسِطُونَ is also specially applied to The party of Mo'áwiyeh; (Mgh;) the people of Siffeen. (TA.)

[And it has the contr. meaning, i. e. Acting equitably, or justly. See, again, عَادِلٌ.]