Quick Definition
uncleanness
Strong's Definition
impurity (the state), morally
Derivation: from G169 (ἀκάθαρτος);
KJV Usage: filthiness
Thayer's Greek Lexicon
ἀκαθάρτης, -ητος, 7, impurity: Rev. xvii. 4;— not found elsewhere, and the true reading here is τὰ ἀκάθαρτα τῆς.
Mounce Concise Greek Dictionary
Abbott-Smith Greek Lexicon
*† ἀκαθάρτης, -τος, ἡ, uncleanness: Re 17:4, Rec. (for τ. ἀκάθαρτα).†
Liddell-Scott-Jones — Greek-English Lexicon
ἀκαθάρτης (akathartēs) — uncleanness. Related to: ἀκᾰθαρ-τος, ον, (καθαίρω) uncleansed, foul, ἀήρ[Refs 5th c.BC+] of the body, [Refs 5th c.BC+]; of a woman, quae menstrua non habet, [Refs 4th c.BC+]; of ceremonial impurity, [LXX] __b unpurified, [Refs 5th c.BC+]
2. morally unclean, impure, [Refs 5th c.BC+]thou beast! [Refs 3rd c.BC+]; ={μανιώδης}, [NT+5th c.BC+]. adverb ἀκαθάρτως, ἔχειν[Refs 5th c.BC+]
3. ofthings, notpurgedaway, unpurged, [Refs 5th c.BC+]
3. b unpruned, [Refs 4th c.BC+]
3. c ceremonially unclean, of food, [LXX+NT]
3. d not sifted, containing impurities, [Refs 3rd c.BC+]
II. active, not fit for cleansing, [φάρμακα] ἑλκέων ἀκαθαρτότερα[Refs 2nd c.AD+]