Mutter | Mean of mutter in English Dictionary

/ˈmʌtɚ/

• Verb
• to speak quietly so that it is difficult for other people to hear what you say
1. She angrily muttered something about her bad luck.
2. He muttered an apology.
3. a muttered comment
4. She sat practicing her speech, muttering to herself.
• to complain in a quiet or indirect way
1. Some employees are muttering about the changes in the pension plan.