"Fundi" can also refer to a handyman or someone who fixes something e.g. "fundi wa baiskeli" - bicycle repairman.
Or technician. A fundi bomba maintains water systems and a fundi umeme is an electrician.
why is this not wa prefix for pl?
The word is from another noun class, the JI/MA class. Singular is fundi, and it takes the ''ma'' prefix in plural.
why did this not say "you are not a craftsman"?
Ninyi is the plural you
This should be "You are not a craftsman. "
I keep hearing 'Mini' si mafundi and I'm always a little confused