YOU SAID:
That is so not cool and so immature
INTO JAPANESE
それはとてもクールで未熟ではありません
BACK INTO ENGLISH
It's not so cool and immature
INTO JAPANESE
それはそれほどクールで未熟ではありません
BACK INTO ENGLISH
It's not that cool and immature
INTO JAPANESE
それはそれほどクールで未熟ではありません
BACK INTO ENGLISH
It's not that cool and immature
You've done this before, haven't you.