perceptible
per-cep-ti-ble
adjective
Able to be noticed, seen, or heard; capable of being detected.
"There was a perceptible change in her demeanour."
Thesaurus
Synonyms: perceivable, faint, sensible, noticeable, discernible, weak, palpable, detectable, recognizable
Antonyms: imperceptible, unperceivable