Meaning of subtle

sub•tle

Pronunciation: (sut'l), [key]
— -tler, -tlest.
  1. thin, tenuous, or rarefied, as a fluid or an odor.
  2. fine or delicate in meaning or intent; difficult to perceive or understand: subtle irony.
  3. delicate or faint and mysterious: a subtle smile.
  4. requiring mental acuteness, penetration, or discernment: a subtle philosophy.
  5. characterized by mental acuteness or penetration: a subtle understanding.
  6. cunning, wily, or crafty: a subtle liar.
  7. insidious in operation: subtle poison.
  8. skillful, clever, or ingenious: a subtle painter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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