Open English Wordnet
Adjectives
(a)discernible, discernableperceptible by the senses or intellect“things happen in the earth and sky with no discernible cause”, “the newspaper reports no discernible progress in the negotiations”, “the skyline is easily discernible even at a distance of several miles”
(s)discerniblecapable of being perceived clearly“an essay with a meaning that was not always discernible”
(s)discernible, evident, observablecapable of being seen or noticed“a discernible change in attitude”, “a clearly evident erasure in the manuscript”, “an observable change in behavior”