invulnerable

"The strong, metal shield protected the knight from the enemy's attacks. "

"The fall injured the child's knee. "

"The being in the classroom was quiet today. "

"The incapable student struggled to complete even the simplest assignments. "

"Do you want to come with?"

"The small dog's playful attacks on my shoelaces always make me laugh. "

"The evidence presented in court was irrefutable; the defendant's guilt was clear. "

"The young child was vulnerable to illness during the cold winter months. "

"The school bully was a real villain, always stealing lunch money and pushing other kids around. "

"The question of why the dog ate the homework was an unanswerable mystery. "

"My argument for staying late was that I needed extra time to finish my project. "

"My little brother loves superheroes like Superman and Batman. "