twaddle vs maunder

twaddle is a noun but maunder is not a noun.

Word	Noun	Adjective	Verb	Adverb
twaddle	Yes	No	Yes	No
maunder	No	No	Yes	No

As verbs, twaddle and maunder are synonyms defined as:

twaddle and maunder: speak (about unimportant matters) rapidly and incessantly

Other synonyms of twaddle include blab, blabber, chatter, clack, gabble, gibber, palaver, piffle, prate, prattle, tattle, tittle-tattle.

twaddle (noun)	maunder (noun)
pretentious or silly talk or writing

twaddle (verb)	maunder (verb)
speak (about unimportant matters) rapidly and incessantly	talk indistinctly; usually in a low voice
	speak (about unimportant matters) rapidly and incessantly
	wander aimlessly