oceanic vs pelagic

oceanic and pelagic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
oceanic	No	Yes	No	No
pelagic	No	Yes	No	No

As adjectives, oceanic and pelagic are synonyms defined as:

oceanic and pelagic: relating to or occurring or living in or frequenting the open ocean

oceanic (adjective)	pelagic (adjective)
relating to or occurring or living in or frequenting the open ocean	relating to or occurring or living in or frequenting the open ocean
constituting or living in the open sea
resembling the ocean in apparent limitlessness in extent or degree