Noun
The quality or state of being subtle, or sly; cunning; craftiness; artfulness.
Nice discernment with delicacy of mental action; nicety of discrimination.
Something that is sly, crafty, or delusive.
Source: Webster's dictionaryIt pays to be obvious, especially if you have a reputation for subtlety. Isaac Asimov
Human subtlety...will never devise an invention more beautiful, more simple or more direct than does nature, because in her inventions nothing is lacking, and nothing is superfluous. Leonardo da Vinci
The difference between stupid and intelligent people – and this is true whether or not they are well-educated – is that intelligent people can handle subtlety. Neal Stephenson
I love the subtlety and tonal range of the acoustic guitar. Dan Fogelberg
Subtlety may deceive you; integrity never will. Oliver Cromwell
Poetry is a lyrical insinuation. Often, its melodic subtlety kisses the subconscious mind. Masiela Lusha