YOU SAID:

his mustache decried all that was beknownst to me prior

INTO JAPANESE

彼の口ひげは私が以前知っていたことを全て非難した

BACK INTO ENGLISH

His moustache condemned everything I used to know

INTO JAPANESE

彼の口ひげは私が知っていたすべてを否定した

BACK INTO ENGLISH

His moustache contradicted everything I knew

INTO JAPANESE

彼の口ひげは私が知っていることと矛盾していた

BACK INTO ENGLISH

His moustache contradicted what I knew

INTO JAPANESE

彼の口ひげは私が知っていたことと矛盾していた

BACK INTO ENGLISH

His moustache contradicted what I knew