stuff vs unstuff

stuff is a noun but unstuff is not a noun.

Word	Noun	Adjective	Verb	Adverb
stuff	Yes	No	Yes	No
unstuff	No	No	Yes	No

stuff (noun)	unstuff (noun)
miscellaneous unspecified objects
unspecified qualities required to do or be something
a critically important or characteristic component
senseless talk
information in some unspecified form
informal terms for personal possessions
the tangible substance that goes into the makeup of a physical object

stuff (verb)	unstuff (verb)
fill with a stuffing while cooking	cause to become unblocked
fill tightly with a material
treat with grease, fill, and prepare for mounting
overeat or eat immodestly; make a pig of oneself
cram into a cavity
obstruct
press or force