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"Desafiando" is a form of "desafiar", a transitive verb which is often translated as "to challenge". "Desafiante" is an adjective which is often translated as "defiant". Learn more about the difference between "desafiando" and "desafiante" below.
desafiar()
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. to challenge
Mi padrastro me desafió a un juego de ajedrez.My stepfather challenged me to a game of chess.
b. to dare
Te desafío a ir al centro comercial y no comprar nada.I dare you to go to the mall and not buy anything.
a. to defy
Desafió a su papá, y fue a una universidad muy lejos de casa.She defied her father and attended a college far away from home.
desafiante()
An adjective is a word that describes a noun (e.g., the big dog).
1. (rebellious)
a. defiant
Juan tiene una actitud desafiante con sus maestros.Juan has a defiant attitude toward his teachers.
2. (demanding)
a. challenging
Según Ana, su entrenamiento es desafiante y requiere mucha disciplina.According to Ana, her training is challenging and requires a lot of self-discipline.