/ˈsʌbˌtaɪl/ or /ˈsʌbˌtaɪl/ (US), /ˈsʌbtaɪl/ (UK)

Definitions

1. adjective

having a subtle quality; difficult to detect or describe; not obvious or clear

“The subtile nuances of the character’s personality made them a fascinating subject for study.”

2. noun

a subtle quality or characteristic

“The subtile of the painting lay in its use of light and shadow.”