ponderer vs muser

ponderer and muser both are nouns.

Word	Noun	Adjective	Verb	Adverb
ponderer	Yes	No	No	No
muser	Yes	No	No	No

As nouns, ponderer and muser are synonyms defined as:

ponderer and muser: a reflective thinker characterized by quiet contemplation

Other synonyms of ponderer include muller, ruminator.

ponderer (noun)	muser (noun)
a reflective thinker characterized by quiet contemplation	a reflective thinker characterized by quiet contemplation