complaint; murmur of discontent
A somewhat literary or formal term for voices of complaint or grumbling, often used in contexts of public or collective dissatisfaction.
Voices of complaint arose from the citizens over the tax increase.
That policy invited murmurs of discontent from the people.
Compound of 怨 (grudge, resentment) and 声 (voice). The exact historical derivation is uncertain, but the word has been used in literary Japanese to denote voices of complaint.