shucks vs ineptitude

shucks and ineptitude both are nouns.

Word	Noun	Adjective	Verb	Adverb
shucks	Yes	No	No	No
ineptitude	Yes	No	No	No

As nouns, ineptitude is a hypernym of shucks; that is, ineptitude is a word with a broader meaning than shucks:

Other hypernyms of shucks include worthlessness.

shucks (noun)	ineptitude (noun)
something of little value	having no qualities that would render it valuable or useful
an expression of disappointment or irritation	unskillfulness resulting from a lack of training