Synonyms of mumer

1 Syllable
shy, still, quiet, hushed, mute
2 Syllables
wordless, speechless, soundless, zipped, bashful, muted
3 Syllables
nonvocal, reserved, tight-lipped, unspeaking, tongue-tied, voiceless
4 Syllables
secretive, unsociable, closemouthed
7 Syllables
uncommunicative