1) not defiled, unsoiled
1a) free from that by which the nature of a thing is deformed and debased, or its force and vigour impaired
Part of Speech: adjective
Citing in TDNT: 4:647, 593
From G1 (as a negative particle) and a derivative of G3392; unsoiled, that is, (figuratively) pure: - undefiled.
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 ἀμίαντος; click on the second column to search for that grammatical form of the root ἀμίαντος; click on the third column to search for that word and grammatical form; click on the total to search for the root ἀμίαντος.