in-strēnŭus, a, um, adj.,
not brisk , inactive , sluggish , spiritless (poet. and in post-Aug. prose): homo, Plaut. Most. 1, 2, 23: animus, Ter. Heaut. 120: dux, Suet. Vesp. 4. — Adv.: instrēnŭē , without spirit : non instrenue moriens, Just. 17, 2, 1.