English to English adjective
1 |
impossible or difficult to perceive by the mind or senses | | Example: an imperceptible drop in temperature an imperceptible nod color is unperceivable to the touch
source: wordnet30
2 |
Not perceptible; not to be apprehended or cognized by the senses; not discernible by the mind; not easily apprehended. | | source: webster1913
|