unbitter

adjective

un·​bit·​ter ˌən-ˈbi-tər 

: not bitter: such as

a

: not having a bitter taste

an unbitter variety of eggplant

b

: not having or exhibiting feelings of malice, resentment, or revenge

Shepherd was remarkably unbitter toward White, though White had stolen a chunk of money from him …

—Garrison Keillor

Word History

First Known Use

1883, in the meaning defined above