|a.||1.||Prosecuted with careful attention and effort; careful; painstaking; not careless or negligent.|
|2.||Interestedly and perseveringly attentive; steady and earnest in application to a subject or pursuit; assiduous; industrious.|
|Adj.||1.||diligent - quietly and steadily persevering especially in detail or exactness; "a diligent (or patient) worker"; "with persevering (or patient) industry she revived the failing business"|
|2.||diligent - characterized by care and perseverence in carrying out tasks; "a diligent detective investigates all clues"; "a diligent search of the files"|
negligent - characterized by neglect and undue lack of concern; "negligent parents"; "negligent of detail"; "negligent in his correspondence"