In a subtle manner; slyly; artfully; cunningly. Thou seest how subtly to detain thee I devise. Milton.
Nicely; delicately. In the nice bee what sense so subtly true. Pope. Subtly communicating itself to my sensibilities, but evading the analysis of my mind. Hawthorne.
Deceitfully; delusively. [Obs.] Shak.
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