Lewis Short
(adjective) : in-dŏcĭlis, e, 2. in-doceo.
* Difficult to be taught, that cannot be taught, indocile.
* Lit. (class): quia nimis indociles quidam tardique sunt, Cic. N. D. 1, 5, 12; so, hebetes et indociles homines,Quint. 1, 1, 2: hirundines,Plin. 10, 45, 62, § 128.—Poet. with gen.: pacis,Sil. 12, 726. —With dat.: quieti,Juv. 11, 11.—With inf.: pauperiem pati,Hor. C. 1, 1, 18: loqui,Luc. 5, 539; Sil. 13, 310: teneri,Stat. Th. 6, 313. —Of the things to be taught: sed incredibilis quaedam ingenii magnitudo non desideravit indocilem usus disciplinam,Cic. Ac. 2, 1, 2.
* (= non doctus.) Untaught, not shown: et sciat indociles currere lympha vias,Prop. 1, 2, 12.
Charlton T. Lewis, Charles Short, A Latin Dictionary