pinched vs hard up

pinched and hard up both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pinched	No	Yes	No	No
hard up	No	Yes	No	No

As adjectives, pinched and hard up are synonyms defined as:

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

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