perceivable

• It's not supposed to be perceivable, or cumbrous, but if you search for it, it will be easily discovered, because all my solutions are quite simple, without much sophistication. —  The Comics Journal
• The real world gain is definitely perceivable, and you may be surprised by just how much. —  The Gadgeteer
• It had lost about the half of its weight, and when reduced to a fine powder was readily dissolved by acids with an effervescence which was hardly perceivable: the alkali had therefore extracted its air. —  Experiments upon magnesia alba, Quicklime, and some other Alcaline Substances
• But more resolute and profound thinkers, although not in so many words attacking the authority of the Scriptures, and leaving Thomas' border-line unquestioned, found the unfathomable truths not in ecclesiastical tradition but in their own souls, thus investing "faith" with a new meaning, unassailable by criticism The idea of drawing a line between perceivable or rational truths and imperceivable or divine truths, is fraught with the burning question as to the limits of human knowledge, a question which to this day remains unanswered. —  The Evolution of Love
• The atom is not directly perceivable, and we may assign to its motions a space so small that no one could possibly perceive it as space, as a something with part out of part, a something with a here and a there. —  An Introduction to Philosophy

Roget's II: The New Thesaurus

Used in the Same Context