ineptitude vs red cent

ineptitude and red cent both are nouns.

Word	Noun	Adjective	Verb	Adverb
ineptitude	Yes	No	No	No
red cent	Yes	No	No	No

As nouns, red cent is a hyponym of ineptitude; that is, red cent is a word with a more specific, narrower meaning than ineptitude:

ineptitude (noun)	red cent (noun)
having no qualities that would render it valuable or useful	something of little value
unskillfulness resulting from a lack of training