Any action which generates matches, confrontation, confrontation, comparison and review. It means that it is worthy of being evaluated and compared.
Male or female confrontational, i.e. that no callan against contingent realities, he or she seems wrong.
It is not a word that is recognized in the Royal Academy of the Spanish language, without prejudice to its possible use in other Spanish speaking countries. It could be defined as what turns out to be confrontational and comparable to the controversial term.
Concerning the confrontation