Baka ja nai意思

"Baka ja nai" is a Japanese phrase that translates to "not stupid" in English. The word "baka" means stupid or foolish, and the phrase "ja nai" is used to negate the word "baka," making the whole phrase mean "not stupid."

In Japanese, the suffix "ja" is used to emphasize negation, and "nai" is the negative form of the verb "na iru," which means "to be." So, when you put "ja" and "nai" together after a negative word, it emphasizes that the subject is not that negative quality.

For example, if someone says "Watashi wa baka desu" (I am stupid), you could respond with "Baka ja nai" to mean "You are not stupid."