Answer: badass

AnswerCrossword Clue
BADASSChuck Norris, notably
BADASSFierce
BADASSSupremely cool person
BADASSAwesomely tough
BADASSTotal baller
badass(of a person) difficult to deal with; mean-tempered; touchy
badassdistinctively tough or powerful; so exceptional as to be intimidating
badassa difficult person
badassmean-tempered troublemaker