Now the grumbling is getting louder—and increasingly it focuses on the president himself.
Obama is on track to accomplish major changes despite some grumbling from the left.
Her assertion that Lincoln was “passed out drunk” during Cabinet meetings may cause some grumbling in certain quarters.
1580s, from Middle French grommeler "mutter between the teeth" or directly from Middle Dutch grommelen "murmur, mutter, grunt," from grommen "to rumble, growl." Imitative, or perhaps akin to grim. Related: Grumbled; grumbling.
1620s, from grumble (v.).