I.slowness, sluggishness, inactivity.
II. Trop.: dulness, apathy, insensibility, Cic. Tusc. 4, 19, 43: “omnino non irasci est non solum gravitatis, sed nonnumquam etiam lentitudinis,” id. Q. Fr. 1, 1, 13, § 38.—Of speech: “libros ejusdem lentitudinis ac teporis,” dulness, heaviness, Tac. Or. 21, 6.