twopenny-halfpenny vs tuppeny

twopenny-halfpenny and tuppeny both are adjectives.

Word	Noun	Adjective	Verb	Adverb
twopenny-halfpenny	No	Yes	No	No
tuppeny	No	Yes	No	No

As adjectives, twopenny-halfpenny and tuppeny are synonyms defined as:

Other synonyms of twopenny-halfpenny include sixpenny, threepenny, two-a-penny, twopenny.

twopenny-halfpenny (adjective)	tuppeny (adjective)
of trifling worth	of trifling worth