synthetic a priori

noun

: a synthetic judgment or proposition that is known to be true on a priori grounds

specifically : one that is factual but universally and necessarily true

the Kantian conception that the basic propositions of geometry and physics are synthetic a priori

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!