picayune vs fiddling

picayune and fiddling both are adjectives.

Word	Noun	Adjective	Verb	Adverb
picayune	No	Yes	No	No
fiddling	No	Yes	No	No

As adjectives, picayune and fiddling are synonyms defined as:

Other synonyms of picayune include footling, lilliputian, little, niggling, petty, piddling, piffling, trivial.

picayune (adjective)	fiddling (adjective)
(informal) small and of little importance	(informal) small and of little importance