ignorant    (person) umutūngu, inyoberwa
(to be) kudebagura
En-En dictionary 
inyoberwa (in-  3  class 3
singular: i-,in-
plural: i-,in-
  
ignorant person
kudebagura (-debaguye)     v    1. to speak foolishly, 2. to be unintelligent, 3. to be ignorant (used in NT for barbarous)
umutūngu (aba-)     1  class 1
singular: umu-
plural: aba-
  
ignorant person, fool
kwīfūtānya (-īfūtānye)     v    1. to revert, go backward, 2. get thinner, 3. to act foolishly, ignorantly
kwītūtānya (-ītūtānye)   v    to act foolishly, to act ignorantly
act    (to ~ as go-between) kurehereza
(~ as if to beat, but not do it) kugera
(~ foolishly) kwītūtānya, gusaragurika, kudāyāngwa
(~ foolishly in fun) gupfyina
(~ homosexually) gutingana
(~ ignorantly) kwītūtānya
(~ indifferent) kwīrengagiza
(to ~ or go secretly because of fear) kwōmba
En-En dictionary 
ignorantly    (to act) kwīfūtānya
En-En dictionary