verb🔗ShareTo speak unintelligibly or inaudibly; to fail to articulate."Please try not to mumble so I can hear you better."languagecommunicationsoundactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo chew something gently with closed lips."The baby mumbled the soft banana between her gums. "foodactioncommunicationChat with AIVocabulary GamePractice Reading