Lewis Short
(adjective) : scrūpōsus, a, um, scrupus.
* Lit., full of sharp or rough stones, jagged, rough, rugged (poet. and in post-class. prose): specus, Att. ap. Non. 223, 2; cf. saxa,Luc. 5, 675; App. M. 6, p. 187, 6: Pyrene,Grat. Cyn. 514: via,Plaut. Capt. 1, 2, 82: ager,App. Flor. 2, p. 348, 20: per asperitates scruposas,Amm. 31, 8, 4.—*
* Trop., rough, hard, arduous: ratio,Lucr. 4, 523.
Charlton T. Lewis, Charles Short, A Latin Dictionary