1) weighing, having weight, having the weight of another thing of like value, worth as much
2) befitting, congruous, corresponding to a thing
3) of one who has merited anything worthy
3a) both in a good and a bad sense
Part of Speech: adjective
Citing in TDNT: 1:379, 63
Probably from G71; deserving, comparable or suitable (as if drawing praise): - due reward, meet, [un-] worthy.
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 ἄξιος; click on the second column to search for that grammatical form of the root ἄξιος; click on the third column to search for that word and grammatical form; click on the total to search for the root ἄξιος.