Strong's G169 — ἀκάθαρτος (adjective)
akathartos (ak-ath'-ar-tos) adj.
1. impure
2. (ceremonially, morally) lewd
3. (specially) demonic
[from G1 (as a negative particle) and a presumed derivative of G2508 meaning "cleansed"]
KJV: foul, unclean 
Root(s): G1, G2508 
Hebrew root: καθαίρω
Occurrences: 32