YOU SAID:
My brain is smooth, it has no wrinkles.
INTO JAPANESE
私の脳は滑らかで、しわはありません。
BACK INTO ENGLISH
My brain is smooth and wrinkle free.
INTO JAPANESE
私の脳は滑らかでしわがありません。
BACK INTO ENGLISH
My brain is smooth and wrinkle free.
That didn't even make that much sense in English.