neglĕgentĭa (better than neclĕg-, not neglĭg-), ae, f. [neglegens from neglego], carelessness, heedlessness, negligence, neglect (syn. incuria; freq. and class.): neglegentiā, pigritiā, inertiā … impediri, Cic. Off. 1, 9, 28: in accusando, id. Rosc. Am. 21, 59: munditia quae fugiat agrestem et inhumanam neglegentiam, id. Off. 1, 36, 130: accusare aliquem de litterarum neglegentiā, of neglecting to write, id. Att. 1, 6, 1.
So, me nomine neglegentiae suspectum tibi esse doleo, id. Fam. 2, 1, 1: epistularum duarum, quas ad me misit, neglegentiam, meamque in rescribendo diligentiam volui tibi notam esse, brevity, coldness, id. ib. 8, 11, 6: sui, Tac. A. 16, 18: quaedam etiam neglegentia est diligens, Cic. Or. 23, 78: institutorum neglegentiam accusare, id. Rep. 4, 3, 3: nam neque neglegentiā tuā, neque odio id fecit tuo, out of disrespect, want of regard, to you, Ter. Phorm. 5, 8, 27: caerimoniarum auspiciorumque, neglect, Liv. 22, 9: deorum, id. 5, 51: cum ex neglegentia domini vacet (fundus), Gai. Inst. 2, 51.