- 睚眦必报 yázìbìbào to seek revenge for the smallest grievance(idiom) lit. to seek revenge even for a dirty look; describes a person who is extremely small-minded and vindictive.
- 睚眦之怨 yázìzhīyuàn a trifling grievance(literary) an extremely small grudge or a minor grievance, literally the resentment caused by a single angry stare