Unusual mumble Synonyms

Definitions for Unusual

(adjective) noticeably different from what is generally found or experienced
(adjective) being out of the ordinary
(adjective) not usual or common or ordinary

UM abbreviation

UM is an abbreviation for Unusual Mumble

What does UM stand for?

UM stands for "Unusual Mumble"

Mumble replaced

unusual voice

Definitions for Mumble

(noun) speech that is not clear enough to be understood
(verb) to speak softly and unclearly
(verb) talk indistinctly; usually in a low voice