penurious vs in straitened circumstances

penurious and in straitened circumstances both are adjectives.

Word	Noun	Adjective	Verb	Adverb
penurious	No	Yes	No	No
in straitened circumstances	No	Yes	No	No

As adjectives, penurious and in straitened circumstances are synonyms defined as:

penurious and in straitened circumstances: not having enough money to pay for necessities

Other synonyms of penurious include hard up, impecunious, penniless, pinched.

penurious (adjective)	in straitened circumstances (adjective)
not having enough money to pay for necessities	not having enough money to pay for necessities
excessively unwilling to spend