tenacious vs persistent

tenacious and persistent both are adjectives.

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

As adjectives, tenacious and persistent are synonyms defined as:

Other synonyms of tenacious include dogged, dour, pertinacious, unyielding.

tenacious (adjective)	persistent (adjective)
good at remembering	retained; not shed
sticking together	never-ceasing
stubbornly unyielding	stubbornly unyielding
	continually recurring to the mind