Subtile /(?)/

Sub·tile

Subtile

a.
  1. Thin; not dense or gross; rare; as, subtile air; subtile vapor; a subtile medium.
  2. Delicately constituted or constructed; nice; fine; delicate; tenuous; finely woven.
    More subtile web Arachne can not spin.
    I do distinguish plain Each subtile line of her immortal face.
  3. Acute; piercing; searching.
    The slow disease and subtile pain.
  4. Characterized by nicety of discrimination; discerning; delicate; refined; subtle.
    The genius of the Spanish people is exquisitely subtile, without being at all acute; hence there is so much humor and so little wit in their literature. The genius of the Italians, on the contrary, is acute, profound, and sensual, but not subtile; hence what they think to be humorous, is merely witty.
    The subtile influence of an intellect like Emerson's.
  5. Sly; artful; cunning; crafty; subtle; as, a subtile person; a subtile adversary; a subtile scheme.