hoarse vs gruff

hoarse and gruff both are adjectives.

Word	Noun	Adjective	Verb	Adverb
hoarse	No	Yes	No	No
gruff	No	Yes	No	No

As adjectives, hoarse and gruff are synonyms defined as:

hoarse and gruff: deep and harsh sounding as if from shouting or illness or emotion

Other synonyms of hoarse include husky.

hoarse (adjective)	gruff (adjective)
deep and harsh sounding as if from shouting or illness or emotion	deep and harsh sounding as if from shouting or illness or emotion
	brusque and surly and forbidding