1) skilful, clever
1a) in a good sense, fit to undertake and accomplish anything, dexterous, wise, sagacious, skilful
1b) in a bad sense, crafty, cunning, knavish, treacherous, deceitful
Part of Speech: adjective
Citing in TDNT: 5:722, 770
From G3956 and G2041; all working, that is, adroit (shrewd): - crafty.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root πανοῦργος; click on the second column to search for that grammatical form of the root πανοῦργος; click on the third column to search for that word and grammatical form; click on the total to search for the root πανοῦργος.