despicable    (to be) gukengerēka, gutītūka
(to do a ~ thing) kugōka
En-En dictionary 
kugōka (-gōtse)     v    1. to break a taboo, 2. to do a despicable thing, 3. to bring or cause disgrace
gukēngereka (-kēngeretse)     v    to be despicable, despised
gutītūka (-tītūtse)     v    to be despised, despicable, to be worn out (of soil), no longer produce