|Origin:||soutil, from Latin subtilis 'finely woven, subtle', from tela 'something woven'|
sub‧tle comparative subtler or, more subtle, superlative subtlest
not easy to notice or understand unless you pay careful attention [≠ obvious]:
The pictures are similar, but there are subtle differences between them.
The warning signs of the disease are so subtle that they are often ignored.
a subtle form of racism
subtle taste/flavour/smell etc
The flavour of the dried berries is more subtle.
The dish had a subtle hint of ginger.
behaving in a skilful and clever way, especially using indirect methods or language to hide what you are trying to do:
I think we need a more subtle approach.
a subtle plan
She wasn't very subtle about it. She just said she didn't love him any more.
very clever in noticing and understanding things [↪ sensitive]:
a subtle mind
a subtly different colour