lazy    (person) umunebwe
(very lazy person, rude, derogative) ikinebwe
(to be) kudeha, kunebwa
En-En dictionary 
kunebwa (-nebwe)     v    to be lazy
umunebwe (aba-)     1  class 1
singular: umu-
plural: aba-
  
lazy person
ikinebwe (ibi-  4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
  
very lazy person (rude, derogative)
kudeha (-deshe)     v    1. to be lazy, 2. to refuse to give the name of a dead person
kunebwēsha (-nebwēsheje)     v    to make lazy, cause to waste time
 lazy found in: Kirundi II (Grammar)
chapter 51   Nouns made from Verbs
 lazy found in: Imyibutsa (proverbs)
Umwibutsa 7   Akanyoni katagurutse ntikamenya iyo...