discernible

(a) perceptible 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
discernable,
(s) capable of being perceived clearly
- an essay with a meaning that was not always discernible
(s) capable of being seen or noticed
- a discernible change in attitude
- a clearly evident erasure in the manuscript
- an observable change in behavior
observable, evident,

discernable observable evident

indiscernible