Definition
To grumble means to complain in a low, indistinct way, often under your breath. It's not a full-blown shout, but a quiet expression of discontent. Think of it like a low rumble of thunder before a storm. ⛈️ It’s often a sign of annoyance or dissatisfaction that isn’t directly addressed. While complaining is expressing unhappiness, grumbling implies a more passive, simmering resentment. It's like the background noise of unhappiness.