YOU SAID:
ain't no river wide enough
INTO JAPANESE
十分な広さの川はありません
BACK INTO ENGLISH
There is no river large enough
INTO JAPANESE
十分な大きさの川はありません
BACK INTO ENGLISH
There is no river big enough
INTO JAPANESE
十分な大きさの川はありません
BACK INTO ENGLISH
There is no river big enough
That didn't even make that much sense in English.