gritty vs mettlesome

gritty and mettlesome both are adjectives.

Word	Noun	Adjective	Verb	Adverb
gritty	No	Yes	No	No
mettlesome	No	Yes	No	No

As adjectives, gritty and mettlesome are synonyms defined as:

Other synonyms of gritty include game, gamey, gamy, spirited, spunky.

gritty (adjective)	mettlesome (adjective)
willing to face danger	willing to face danger
composed of or covered with particles resembling meal in texture or consistency	having a proud and unbroken spirit