• (British) IPA: /ˈsʌt.li/, /ˈsʌ.tl̩.li/
• (America) IPA: /ˈsʌ.tl̩.li/

subtly

1. With subtleness, in a subtle manner; with cleverness rather than brute force.
   • 1533, Erasmus of Roterdame, “The Thyrde Instruction”, in [anonymous], transl., A Playne and Godly Exposytion or Declaration of the Commune Crede (which in the Latin Tonge is Called Symbolum Apostolorum): And of the .x. Commaundementes of Goddes Law. […], imprinted at London […]: By me Robert Redman, […] [for William Marshall], OCLC 1114134812 ↗, folio 66, verso ↗:

     Nexte cometh Arrius by ſoo muche the more wretched and madde in opynyon, by howe muche he dothe more ſubtely and craftily geue unto Chriſt the body of a man, and taketh from hym the ſowle of a man, [...]

• French: subtilement
• Italian: velatamente, sottilmente, subdolamente
• Portuguese: sutilmente
• Spanish: sutilmente