mettlesome vs gamey

mettlesome and gamey both are adjectives.

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

As adjectives, mettlesome and gamey are synonyms defined as:

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

mettlesome (adjective)	gamey (adjective)
willing to face danger	willing to face danger
having a proud and unbroken spirit	(used of the smell of meat) smelling spoiled or tainted
	suggestive of sexual impropriety