Machigainai 

adj.
1. Without mistake
2. Undoubtedly

"Sakki no jutsu, machigainai, Rasenganda!"
Meaning:
The jutsu undoubtedly is the Rasengan.

Machigainai by ShashankS December 9, 2009

machigainai 

word that trancendes all complimentary words; such as fabulous, gorgeous, amazing, magnificant and etc. Often shouted, due to uncontrollably excellent feeling.

A: "Did you see his new Jaguar?"
B: "Yeah, it's totally machigainai."

A: "How was the party last night?"
B: "Machigainai!"

machigainai by soniact September 3, 2008

machigainai 

word that trancendes all complimentary words; such as fabulous, gorgeous, amazing, magnificant and etc. Often shouted due to uncontrolled excitement.

A: "How was the party last night?"
B: "Free booze all night long. It was machigainai!"

A: "You can use the VIP lounge."
B: "Machigainai!"

machigainai by soniact June 23, 2006