puniness vs slightness

puniness and slightness both are nouns.

Word	Noun	Adjective	Verb	Adverb
puniness	Yes	No	No	No
slightness	Yes	No	No	No

As nouns, puniness and slightness are synonyms defined as:

puniness and slightness: the quality of being unimportant and petty or frivolous

Other synonyms of puniness include pettiness, triviality.

puniness (noun)	slightness (noun)
smallness of stature	slenderness
the quality of being unimportant and petty or frivolous	the property of an attractively thin person
	the quality of being unimportant and petty or frivolous