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Definition of mumbler
mumbler
/ˈmʌm.blɚ/
mum · bler
Plural:mumblers
mumbler Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Rare
Syllables
2
mumbler Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A person who speaks quietly, indistinctly, or without opening the mouth sufficiently, making their words difficult to hear or understand.
Example
"The actor was a notorious mumbler during early rehearsals until the vocal coach taught him how to project his voice to the back of the theater."
Synonyms
View all synonyms for mumbler Antonyms
View all antonyms for mumbler• Rhymes for mumbler
Word Origin & Etymology
Formed in Middle English as an agent noun from the verb 'mumble', which is of imitative origin and closely related to Middle Low German 'mummelen' and Dutch 'mommelen'.
Cite this Entry
Wordmom. (2026). Definition of Mumbler. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/mumbler