verb🔗ShareTo speak unintelligibly or inaudibly; to fail to articulate."Please try not to mumble so I can hear you better."soundlanguagecommunicationactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo chew something gently with closed lips."The baby was happily mumbling on a piece of soft banana. "foodactionbodycommunicationChat with AIVocabulary GamePractice Reading
noun🔗ShareAn act in which someone mumbles something"The student's mumbling made it impossible for the teacher to understand the question. "soundcommunicationactionlanguageChat with AIVocabulary GamePractice Reading
