primaeval vs primordial

primaeval and primordial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
primaeval	No	Yes	No	No
primordial	No	Yes	No	No

As adjectives, primaeval and primordial are synonyms defined as:

primaeval and primordial: having existed from the beginning; in an earliest or original stage or state

Other synonyms of primaeval include aboriginal, primal, primeval.

primaeval (adjective)	primordial (adjective)
having existed from the beginning; in an earliest or original stage or state	having existed from the beginning; in an earliest or original stage or state