shyster vs pettifogger

shyster and pettifogger both are nouns.

Word	Noun	Adjective	Verb	Adverb
shyster	Yes	No	No	No
pettifogger	Yes	No	No	No

As nouns, shyster and pettifogger are synonyms defined as:

shyster and pettifogger: a person (especially a lawyer or politician) who uses unscrupulous or unethical methods

shyster (noun)	pettifogger (noun)
a person (especially a lawyer or politician) who uses unscrupulous or unethical methods	a person (especially a lawyer or politician) who uses unscrupulous or unethical methods
	a disputant who quibbles; someone who raises annoying petty objections