chocolate-brown vs brownish

chocolate-brown and brownish both are adjectives.

Word	Noun	Adjective	Verb	Adverb
chocolate-brown	No	Yes	No	No
brownish	No	Yes	No	No

As adjectives, chocolate-brown and brownish are synonyms defined as:

chocolate-brown and brownish: of a color similar to that of wood or earth

Other synonyms of chocolate-brown include brown, dark-brown.

chocolate-brown (adjective)	brownish (adjective)
of a color similar to that of wood or earth	of a color similar to that of wood or earth