in straitened circumstances vs pinched

in straitened circumstances and pinched both are adjectives.

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

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

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

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

in straitened circumstances (adjective)	pinched (adjective)
not having enough money to pay for necessities	as if squeezed uncomfortably tight
	sounding as if the nose were pinched
	not having enough money to pay for necessities
	very thin especially from disease or hunger or cold