1) not cleansed, unclean
1a) in a ceremonial sense: that which must be abstained from according to the levitical law
1b) in a moral sense: unclean in thought and life
Part of Speech: adjective
Citing in TDNT: 3:427, 381
From G1 (as a negative particle) and a presumed derivative of G2508 (meaning cleansed); impure (ceremonially, morally (lewd) or specifically (demonic)): - foul, unclean.
|(πνεῦμα ἀκάθαρτον) unclean spirit||12.39|
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 ἀκάθαρτος; click on the second column to search for that grammatical form of the root ἀκάθαρτος; click on the third column to search for that word and grammatical form; click on the total to search for the root ἀκάθαρτος.