Definify.com
Webster 1913 Edition
Subtlety
Sub′tle-ty
,Noun.
pl.
Subtleties
(#)
. 1.
The quality or state of being subtle, or sly; cunning; craftiness; artfulness.
The fox which lives by
subtlety
. Shakespeare
2.
Nice discernment with delicacy of mental action; nicety of discrimination.
3.
Something that is sly, crafty, or delusive.
Unlearned in the world’s false
subtleties
. Shakespeare