Verb: acerbate 'a-su(r),beyt
- Cause to be bitter or resentful
"These injustices acerbated her even more";
- embitter, envenom [archaic]
- Make sour or bitter
"The criticism acerbated his already foul mood"
Derived forms: acerbated, acerbates, acerbating
Type of: alter, cast down, change, deject, demoralise [Brit], demoralize, depress, dismay, dispirit, get down, modify