What does cognoscible mean?
Cognoscible is a rare adjective meaning capable of being known or grasped by the mind. It belongs almost exclusively to the vocabulary of philosophy, particularly epistemology, where thinkers need a precise term for whatever falls within the limits of human knowledge. To say that something is cognoscible is to claim that it can, at least in principle, be an object of cognition — as opposed to remaining forever hidden, transcendent, or unknowable. The word derives from the Latin cognoscere, meaning 'to come to know,' the same root that gives us cognition and cognitive. Its close relative 'cognizable' has drifted into specialized legal use, leaving 'cognoscible' as the more purely philosophical choice. Because of its rarity, it carries a distinctly formal, scholarly register and would sound out of place in ordinary conversation. Still, it offers writers on abstract topics a precise, elegant way to mark the boundary between what human intelligence can reach and what lies beyond it.
adjectiveCapable of being known, understood, or cognized by the mind. Used chiefly in philosophy and epistemology to describe objects or truths that fall within the reach of human knowledge.
- Capable of being known or cognized by the mind (chiefly in epistemology and metaphysics).
"Kant argued that only phenomena are cognoscible, while things-in-themselves lie forever beyond our understanding."
"The empiricists held that only objects of experience are truly cognoscible."
"He doubted whether the ultimate nature of reality was cognoscible at all."
If Kant is right, you'll never know a thing-in-itself — but anything that IS knowable gets a fancy Latin badge of honour: it's cognoscible.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cognoscible
Cognoscible comes from the Late Latin cognoscibilis, formed from cognoscere, meaning 'to become acquainted with' or 'to learn', itself a compound of com- ('with, together') and gnoscere ('to know'), from the Proto-Indo-European root *gnō-. The word entered English in the early modern period, in the 16th or early 17th century, largely through scholastic and philosophical usage. It shares its root with a family of English words including cognition, incognito, and, via French, connoisseur — all ultimately tracing back to the same ancient idea of knowing.
Related word forms
How cognoscible is actually used
A rare, learned word confined almost entirely to philosophical and academic writing, especially discussions of epistemology and Kantian metaphysics. In everyday contexts and in law, 'knowable' or 'cognizable' are strongly preferred.
Easily confused with cognoscible
While both mean 'capable of being known,' 'cognizable' is the standard term in law, where it refers to matters falling within a court's jurisdiction, whereas 'cognoscible' is a rarer, chiefly philosophical term for what the mind can know.
'Recognizable' means able to be identified from previous experience, whereas 'cognoscible' means capable of being known or grasped intellectually at all.