lour vs glower

lour is not a noun while glower is a noun.

Word	Noun	Adjective	Verb	Adverb
lour	No	No	Yes	No
glower	Yes	No	Yes	No

As verbs, lour and glower are synonyms defined as:

lour and glower: look angry or sullen, wrinkle one's forehead, as if to signal disapproval

Other synonyms of lour include frown, lower.

lour (noun)	glower (noun)
	an angry stare

lour (verb)	glower (verb)
look angry or sullen, wrinkle one's forehead, as if to signal disapproval	look angry or sullen, wrinkle one's forehead, as if to signal disapproval
make lower or quieter	look at with a fixed gaze
set lower