IMPERCEPTIBILITY
Im`per*cep`ti*bil"i*ty, n.

Defn: The state or quality of being imperceptible.

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

Defn: 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.

IMPERCEPTION
Im`per*cep"tion, n.

Defn: Want of perception.

IMPERCEPTIVE
Im`per*cep"tive, a.

Defn: Unable to perceive.
The imperceptive part of the soul. Dr. H. More.

IMPERCIPIENT
Im`per*cip"i*ent, a.

Defn: Not perceiving, or not able to perceive. A. Baxter.