DICT.TW Dictionary Taiwan

 im·per·cep·ti·ble /ˌɪmpɚ/
 (a.)不能感知的,不知不覺的,微細的

 Im·per·cep·ti·ble a.  Not perceptible; not to be apprehended or cognized by the senses; 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 . . . subtilty and imperceptibleness.   --Sir M. Hale.
 ◄ ►

 imperceptible
      adj : impossible or difficult to perceive by the mind or senses;
            "an imperceptible drop in temperature"; "an
            imperceptible nod"; "color is unperceivable to the
            touch" [syn: unperceivable] [ant: perceptible]