"Imperceivable" is a word in ENGLISH

The act of growing to a thing; usually applled to the gradual and Imperceptible accumulation of land by nat-ural causes, …

To move in a stealthy or secret manner; to move imperceptibly or clandestinely; to steal in; to insinuate itself or …

To recede and grow fainter; to become imperceptible; to vanish; -- often with out or away.

dulâ-dúlà - Dim. and Freq. of dúlà. Also: Disappearing, melting away, changing imperceptibly from one into the other; to melt—, …

Vanishing from notice; imperceptible.

; imperceptibly.

The state or quality of being imperceptible.

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

Want of perception.

Unable to perceive.

Not to be discerned; imperceptible; not discoverable or visible.

Incapable of being perceived by the senses; imperceptible. Hence: Progressing by imperceptible degrees; slow; gradual; as, insensible motion.

In a manner not to be felt or perceived; imperceptibly; gradually.

To creep, wind, or flow in; to enter gently, slowly, or imperceptibly, as into crevices.

Not tangible; incapable of being touched; not perceptible to the touch; impalpable; imperceptible.

A gliding, slipping, or gradual falling; an unobserved or imperceptible progress or passing away,; -- restricted usually to immaterial things, …

To render inert or imperceptible the peculiar affinities of, as a chemical substance; to destroy the effect of; as, to …

To wear out; to remove or destroy utterly by any means; to render imperceptible; as. to obliterate ideas; to obliterate …

The part of a picture where the shade imperceptibly blends with the light.

A sound which, by a gradual change in the position of the vocal organs, passes imperceptibly into another sound.