FilthyFILTH'Y, adjective1. Dirty; foul; unclean; nasty.2. Polluted; defiled by sinful practices; morally impure.He that is filthy let him be filthy still. [[Revelation 22#11|Revelation 22:11]].3. Obtained by base and dishonest means; as filthy lucre. [[Titus 1#7|Titus 1:7]].