Existenial
Existenial is an obscure term that occasionally appears in English-language writing. It is not listed in major dictionaries and has no widely accepted definition. In many cases, it is a misspelling of existential or existentialism. Where it is used as a coined term, existenial is typically presented as a neologism intended to signal a focus on the nature of existence, sometimes blending notions of existence with essential or practical concerns.
As a possible definition, some writers treat existenial as a portmanteau of existence and essential, denoting
In creative or marketing contexts, existenial may function as a name or motif chosen to suggest depth,
Etymology is uncertain; most likely a blend of existence-related morphemes with a suffix similar to existential.
See also: existentialism, existence, ontology, phenomenology.