imperceptibleness

imperceptible

[im-per-sep-tuh-buhl]
adjective
1.
very slight, gradual, or subtle: the imperceptible slope of the road.
2.
not perceptible; not perceived by or affecting the senses.
noun
3.
something not capable of being perceived by the senses: metaphysical speculation about imperceptibles.

Origin:
1520–30; < Medieval Latin imperceptibilis. See im-2, perceptible

imperceptibility, imperceptibleness, noun
imperceptibly, adverb


2. hidden, unperceivable, undetectable.
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World English Dictionary
imperceptible (ˌɪmpəˈsɛptɪbəl)
 
adj
too slight, subtle, gradual, etc, to be perceived
 
impercepti'bility
 
n
 
imper'ceptibleness
 
n
 
imper'ceptibly
 
adv

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