subtle

US /ˈsʌt̬.əl/
UK /ˈsʌt̬.əl/
"subtle" picture
1.

sutil, delicado, imperceptível

so delicate or precise as to be difficult to analyze or describe

:
The painting had a subtle blend of colors.
A pintura tinha uma mistura sutil de cores.
There was a subtle change in his expression.
Houve uma mudança sutil em sua expressão.
2.

astuto, perspicaz, discreto

making use of clever and indirect methods to achieve something

:
He used a subtle approach to persuade them.
Ele usou uma abordagem sutil para persuadi-los.
Her subtle hints were finally understood.
Suas dicas sutis foram finalmente compreendidas.