grăcĭlĭtas (noun F) : gracilis
* Slenderness, thinness, leanness, meagreness.
* Lit. (class.; syn.: macies, subtilitas): erat eo tempore in nobis summa gracilitas et infirmitas corporis,Cic. Brut. 91, 313: cervicis et crurum,Suet. Calig. 50: crurum,id. ib. 3; id. Dom. 18: digitalis (vitis),Plin. 14, 3, 4, § 40; cf.: papyrum in gracilitatem fastigatum,id. 13, 11, 22, § 71.—Plur.: habet certos sui studiosos (Lysias), qui non tam habitus corporis opimos, quam gracilitates consectentur,Cic. Brut. 16, 64.
* Trop., of style, simplicity, plainness, want of ornament (post-Aug.): quid Periclea? similemne credimus Lysiacae gracilitati?Quint. 12, 10, 24; cf.: exempla in Latina lingua M. Varro esse dicit ubertatis Pacuvium, gracilitatis Lucilium, mediocritatis Terentium,Gell. 7, 14, 6 (v. the whole 14th chap.): pressa illa narrationis,Quint. 4, 3, 2; 1, 9, 2.

s. TLL