DictionarysubtleDifficult to notice
adjective

subtle

SUT-uhl/ˈsʌtl/

Delicate or slight enough to be difficult to notice.

The pale blue rim creates a subtle difference between the cream cups.

Two cream ceramic cups differ only by a tiny pale blue rim, a subtle difference visible on careful inspection.
Etymology

The “under” and “web” elements evoke fine weaving; Watkins interprets the image as a fine thread passing under the warp. Physical fineness extends to qualities so delicate that they require careful attention.

In context

Hidden Coin Authority17:14
most obvious doubling you'll ever see on a coin. If you look closely, the letters almost look like they're vibrating. Like a shadow sitting right next to them. It's not subtle. It's loud.
URGENT: Why Dealers Are DESPERATE For This 1982 Penny (Check Your Pocket NOW)

More examples

  • There is a subtle difference between these two shades of blue.
  • I notice a subtle change in his tone.
  • The pattern is so subtle that it disappears in dim light.

Forms

subtle · subtler · subtlest

subtly adverb — In a way that is difficult to notice.

subtlety noun — The quality of being difficult to notice.

Similar words

faint
Faint emphasizes weak intensity, especially in sounds, smells, or light.
slight
Slight emphasizes small degree or amount rather than difficulty noticing.