ŏpĕrōsus

I. Taking great pains, painstaking, active, busy, industrious, laborious (class.; syn.: laboriosus, industrius): senectus, opp. to languida atque iners, Cic. Sen. 8, 26: colonus, Ov. Nuce, 57: cultibus ambae, id. Am. 2, 10, 5. —Poet. with Gr. acc.: Cynthia non operosa comas (al. comis), Prop. 5, 8, 52.—Poet. with gen.: vates operose dierum, Ov. F. 1, 101.—Sup.: Syria in hortis operosissima, Plin. 20, 5, 16, § 33.—

B. Transf., of a medicine, active, efficacious, powerful, drastic (poet.): herbae, Ov. M. 14, 22.—

II. That costs much trouble, troublesome, toilsome, laborious, difficult, elaborate (syn. difficilis): labor operosus et molestus, Cic. N. D. 2, 23, 59: artes, id. Off. 2, 5, 17: opus, id. Q. Fr. 2, 14, 1: res, Liv. 4, 8: templa, Ov. M. 15, 667: moles mundi, id. ib. 1, 258: castaneae cibo, Plin. 15, 23, 25, § 93: carmina, Hor. C. 4, 2, 31.—Comp.: ne quis sepulcrum faceret operosius, quam quod decem homines effecerint triduo, Cic. Leg. 2, 26, 64: divitiae operosiores, Hor. C. 3, 1, 48; 3, 12, 5.—Hence, adv.: ŏpĕrōsē.

A. Lit., with great labor or pains, laboriously, carefully (class.): nec flat operose, Cic. Or. 44, 149: vina condita, Ov F. 5, 269.—Comp.: dicemus operosius, Plin. 18, 26, 65, § 238.—

B. Transf., exactly, accurately (post-Aug.): dicemus mox paulo operosius, Plin. 18, 26, 65, § 238.