ثِقَلٌ
1.
Heaviness; weight, or weightiness; ponderousness; gravity; opposite of
خِفَّةٌ: (S, K, and Er-Rághib:) and preponderance: in its primary acceptation, relating to corporeal objects: then, to ideal objects. (Er-Rághib, TA. [See ثَقُلَ, throughout.]) See also ثِقْلٌ.
2.
فِى أُذُنِهِ ثِقَلٌ (tropical:) [In his ear is a heaviness, or dulness,] is said of him whose hearing is not good; as though he were averse from receiving, or accepting, or admitting, or slow to receive, &c., what is said to him. (TA.)