pettifogger vs quibbler

pettifogger and quibbler both are nouns.

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

As nouns, pettifogger and quibbler are synonyms defined as:

pettifogger and quibbler: a disputant who quibbles; someone who raises annoying petty objections

Other synonyms of pettifogger include caviler, caviller.

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