"A clean spoon"

[Kole-Wright]

Why not "kisafi"?

[DiegoJaviUnlam]

"Safi" does not have variation of declension (indeclinable adjective):

https://en.wiktionary.org/wiki/safi

https://en.wiktionary.org/wiki/Category:Swahili_indeclinable_adjectives

[Theo_Bromin]

I think most words that are derived from other languages are like that - and afaik "safi" comes from arabic (please correct me if I'm wrong)

[GeorgeMwid1]

Hey Duolingo it is okay to say Kijiko safi but that is not commonly used in Tanzania where we say Kijiko Kisafi. I have notes and and explanations to teach you these forms of adjectives to be used with a Noun from KI/VI Noun Class.