tatterdemalion vs broken-down

tatterdemalion is a noun but broken-down is not a noun.

Word	Noun	Adjective	Verb	Adverb
tatterdemalion	Yes	Yes	No	No
broken-down	No	Yes	No	No

As adjectives, tatterdemalion and broken-down are synonyms defined as:

Other synonyms of tatterdemalion include bedraggled, derelict, dilapidated, ramshackle, tumble-down.

tatterdemalion (noun)	broken-down (noun)
a dirty shabbily clothed urchin

tatterdemalion (adjective)	broken-down (adjective)
worn to shreds; or wearing torn or ragged clothing	in deplorable condition
in deplorable condition	not in working order