uncut vs unmown

uncut and unmown both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncut	No	Yes	No	No
unmown	No	Yes	No	No

As adjectives, uncut and unmown are synonyms defined as:

uncut and unmown: (used of grass or vegetation) not cut down with a hand implement or machine

uncut (adjective)	unmown (adjective)
not cut	(used of grass or vegetation) not cut down with a hand implement or machine
(of pages of a book) having adjacent leaves still joined at the fore edge
not shaped by cutting or trimming
(used of grass or vegetation) not cut down with a hand implement or machine
not trimmed
complete
not injured by cutting