persnickety vs pernickety

persnickety and pernickety both are adjectives.

Word	Noun	Adjective	Verb	Adverb
persnickety	No	Yes	No	No
pernickety	No	Yes	No	No

As adjectives, persnickety and pernickety are synonyms defined as:

persnickety and pernickety: characterized by excessive precision and attention to trivial details

persnickety (adjective)	pernickety (adjective)
characterized by excessive precision and attention to trivial details	characterized by excessive precision and attention to trivial details
(used colloquially) overly conceited or arrogant