I would think that adjectives are before the nouns/names:
variable: shiro neko, aka hige (it seems that the -i termination is put away, but I can't confirm all the cases)
unvariable: shizuka-na heya, baka-na hito
warning: that depends if in french "epithète" or "attribute" ->
"épithète" : sono baka-na neko - sono shiro neko
attribute: sono neko wa baka desu - sono neko wa shiroi (or shiro-kunai) desu
in case of "épithète" (sorry, I don't know the good word in english
), it is like in english as it seems. But I didn't practice since two years ago!