Im`per*cep"ti*ble (?), a. [Pref. im- not + perceptible: cf. F. imperceptible.]

Not perceptible; not to be apprehended or cognized by the souses; not discernible by the mind; not easily apprehended.

Almost imperceptible to the touch. Dryden.

Its operation is slow, and in some cases almost imperceptible. Burke.

-- Im`per*cep"ti*ble*ness, n. -- Im`per*cep"ti*bly, adv.

Their . . . subility and imperceptibleness. Sir M. Hale.

 

© Webster 1913.

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