muttering

mut·ter  (mtr)

v. mut·tered, mut·ter·ing, mut·ters

v.intr.

1. To speak indistinctly in low tones.

2. To complain or grumble morosely.

v.tr.

To utter or say in low indistinct tones.

n.

A low grumble or indistinct utterance.

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[Middle English muttren, possibly from Latin muttre.]

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mutter·er n.

Thesaurus

Noun	1.	muttering - a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech murmur, murmuration, murmuring, mussitation, mutter sound - the sudden occurrence of an audible event; "the sound awakened them"
	2.	muttering - a complaint uttered in a low and indistinct tone grumble, grumbling, murmuring, mutter, murmur complaint - an expression of grievance or resentment

Translations

muttering

n (= act) → Gemurmel nt; (with discontent) → Murren nt; (= remark) → Gemurmel nt no pl, → Meckerei f (inf)