trailblazer vs mastermind

trailblazer and mastermind both are nouns.

Word	Noun	Adjective	Verb	Adverb
trailblazer	Yes	No	No	No
mastermind	Yes	No	Yes	No

As nouns, mastermind is a hypernym of trailblazer; that is, mastermind is a word with a broader meaning than trailblazer:

trailblazer: someone who helps to open up a new line of research or technology or art
mastermind: someone who creates new things

Other hypernyms of trailblazer include conceiver, originator.

trailblazer (noun)	mastermind (noun)
someone who marks a trail by leaving blazes on trees	someone who creates new things
someone who helps to open up a new line of research or technology or art	someone who has exceptional intellectual ability and originality

trailblazer (verb)	mastermind (verb)
	plan and direct (a complex undertaking)