Subtil
From BiblePortal Wikipedia
Subtil [1]
Sub'Til, a. L. subtilis. This word is often written subtle, but less properly.
1. Thin not dense or gross as subtil air subtil vapor a subtil medium. 2. Nice fine delicate.
I do distinguish plain
Each subtil line of her immortal face.
3. Acute piercing as subtil pain. 4. Sly artful cunning crafty insinuating as a subtil person a subtil adversary. 5. Planned by art deceitful as a subtil scheme. 6. Deceitful treacherous. 7. Refined fine acute as a subtil argument.