Search Result for "unperceivable": 
Wordnet 3.0

ADJECTIVE (1)

1. impossible or difficult to perceive by the mind or senses;
- Example: "an imperceptible drop in temperature"
- Example: "an imperceptible nod"
- Example: "color is unperceivable to the touch"
[syn: imperceptible, unperceivable]


The Collaborative International Dictionary of English v.0.48:

Unperceivable \Unperceivable\ See perceivable.
WordNet (r) 3.0 (2006):

unperceivable adj 1: 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: imperceptible, unperceivable] [ant: perceptible]