picayune vs trivial

picayune and trivial both are adjectives.

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

As adjectives, picayune and trivial are synonyms defined as:

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

picayune (adjective)	trivial (adjective)
(informal) small and of little importance	concerned with trivialities
	of little substance or significance
	(informal) small and of little importance