persistent vs continual

persistent and continual both are adjectives.

Word	Noun	Adjective	Verb	Adverb
persistent	No	Yes	No	No
continual	No	Yes	No	No

persistent (adjective)	continual (adjective)
retained; not shed	recurring regularly or frequently in a prolonged and closely spaced series
never-ceasing	having no interruptions
stubbornly unyielding
continually recurring to the mind