Lewis Short
(adj.adv.) : nūgātōrĭus, a, um, adj.nugator
* Trifling, worthless, useless, futile, nugatory: nugatoriae artes,i. e. lies,Plaut. Trin. 4, 2, 2: boves Ligustici,worthless, useless,Varr. R. R. 2, 5, 9; so, unguentum,id. L. L. 7, § 64 Müll.: ad probandum res infirma nugatoriaque,Cic. Caecin. 23, 64: illud valde leve est ac nugatorium,id. Fam. 11, 2, 3: in malā nugatoriāque accusatione,id. Rosc. Am. 15, 42: genus argumentationis,not to the point,Auct. Her. 2, 20, 31: genus deorum, Aug. Civ. Dei, 4, 27.—As subst.: nū-gātōrĭus, ii, m., a worthless fellow, nugatorium vocant, Sen. Ep. 36, 2.—Hence, adv.: nūgātōrĭē, triflingly, frivolously: tenuiter et nugatorie respondere,Auct. Her. 4, 36, 48.
Charlton T. Lewis, Charles Short, A Latin Dictionary