smear vs smutch

smear is a noun but smutch is not a noun.

Word	Noun	Adjective	Verb	Adverb
smear	Yes	No	Yes	No
smutch	No	No	Yes	No

As verbs, smear and smutch are synonyms defined as:

Other synonyms of smear include blur, smudge.

smear (noun)	smutch (noun)
an act that brings discredit to the person who does it
a blemish made by dirt
a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
slanderous defamation

smear (verb)	smutch (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	make a smudge on; soil by smudging
make a smudge on; soil by smudging
stain by smearing or daubing with a dirty substance
cover (a surface) by smearing (a substance) over it