The 18-year-old burst onto the scene for United this season when he scored both goals in their 2-1 win against Sunderland on October 5, and the youngster has established himself in the first team squad since.
"[Januzaj's] doing absolutely fantastic," Lindegaard told the club's official website. "You see what an impact he's had, not just [against Norwich in the League Cup] but on other nights as well.
"Adnan is cheeky both on the pitch and off the pitch. He seems very balanced in his personality and that's great to see from an 18-year-old kid.
"He plays like he's played 200 Premier League games already. I'm just very impressed with him. He gives hope to the whole United spirit, a young lad coming through from the academy into the first team."
United are currently eighth in the Premier League.