cerise vs reddish

cerise is a noun but reddish is not a noun.

Word	Noun	Adjective	Verb	Adverb
cerise	Yes	Yes	No	No
reddish	No	Yes	No	No

As adjectives, cerise and reddish are synonyms defined as:

cerise and reddish: of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies

Other synonyms of cerise include blood-red, carmine, cherry-red, cherry, crimson, red, ruby-red, ruby, ruddy, scarlet.

cerise (noun)	reddish (noun)
a red the color of ripe cherries

cerise (adjective)	reddish (adjective)
of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies	of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies