impress vs sadden

impress is a noun but sadden is not a noun.

Word	Noun	Adjective	Verb	Adverb
impress	Yes	No	Yes	No
sadden	No	No	Yes	No

As verbs, sadden is a hyponym of impress; that is, sadden is a word with a more specific, narrower meaning than impress:

impress (noun)	sadden (noun)
the act of coercing someone into government service

impress (verb)	sadden (verb)
dye (fabric) before it is spun	come to feel sad
produce or try to produce a vivid impression of	make unhappy
mark or stamp with or as if with pressure
take (someone) against his will for compulsory service, especially on board a ship
reproduce by printing
impress positively
have an emotional or cognitive impact upon