1. glitch
A glitch is a problem which stops something from working properly or being successful.
e.g. Manufacturing glitches have limited the factory's output.
2. resentment
Resentment is bitterness and angry that someone feels about something.
e.g. She expressed resentment at being interviewed by a social worker.
3. outbreak
If there is an outbreak of something unpleasant, such as violence or disease, it suddenly starts to happen.
e.g. In Peru, a cholera outbreak continues to spread.
