There are 12 meanings listed in OED's entry for the word transcendental . See ‘ Meaning & use’ for definitions, usage, and quotation evidence. Transcendental definition: transcendent, surpassing, or superior.. See examples of TRANSCENDENTAL used in a sentence. The Ethics of Baruch Spinoza used the expression " transcendental terms" (in Latin: termini transcendentales) to indicate concepts like Being, Thing, Something, [6] which are so general not to be included in the definitions of species, genus and category. In modern philosophy, Immanuel Kant introduced a new term, transcendental , thus instituting a new, third meaning . In his theory of knowledge, this concept is concerned with the condition of possibility of knowledge itself. He also opposed ... Transcendental describes anything that has to do with the spiritual, non-physical world. You could describe the time you spend in the woods hiking as a physical and a transcendental experience.