penniless vs penurious

penniless and penurious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
penniless	No	Yes	No	No
penurious	No	Yes	No	No

As adjectives, penniless and penurious are synonyms defined as:

Other synonyms of penniless include hard up, impecunious, in straitened circumstances, pinched.

penniless (adjective)	penurious (adjective)
not having enough money to pay for necessities	not having enough money to pay for necessities
	excessively unwilling to spend