poor vs wretched

poor is a noun but wretched is not a noun.

Word	Noun	Adjective	Verb	Adverb
poor	Yes	Yes	No	No
wretched	No	Yes	No	No

As adjectives, poor and wretched are synonyms defined as:

Other synonyms of poor include hapless, miserable, misfortunate, pathetic, piteous, pitiable, pitiful.

poor (noun)	wretched (noun)
people without possessions or wealth (considered as a group)

poor (adjective)	wretched (adjective)
having little money or few possessions	morally reprehensible
lacking in quality or substances	of very poor quality or condition
characterized by or indicating poverty	characterized by physical misery
of insufficient quantity to meet a need	deserving or inciting pity
deserving or inciting pity	very unhappy; full of misery