1) of a bad nature
1a) not such as it ought to be
2) of a mode of thinking, feeling, acting
2a) base, wrong, wicked
3) troublesome, injurious, pernicious, destructive, baneful
Part of Speech: adjective
Citing in TDNT: 3:469, 391
Apparently a primary word; worthless (intrinsically such; whereas G4190 properly refers to effects), that is, (subjectively) depraved, or (objectively) injurious: - bad, evil, harm, ill, noisome, wicked.
|b bad (value)||65.26|
|a bad (moral)||88.106|
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 κακός; click on the second column to search for that grammatical form of the root κακός; click on the third column to search for that word and grammatical form; click on the total to search for the root κακός.