Following are all the mumble like words, in the list below.
MUSSITATE
100% like mumble
MUTTER
100% like mumble
MAFFLE
99.99% like mumble
MAUNDER
99.99% like mumble
GUM
99.47% like mumble
SLUR
66.69% like mumble
PEG
66.28% like mumble
MUTTERING
33.44% like mumble
WHISPER
33.44% like mumble
GRUMBLE
33.44% like mumble
BABBLE
33.44% like mumble
MURMURING
33.44% like mumble
GABBLE
33.44% like mumble
STAMMER
33.44% like mumble
MUTTERED
33.44% like mumble
MUMBLINGS
33.44% like mumble
SNICKER
33.44% like mumble
MURMUR
33.44% like mumble
MUTTERS
33.44% like mumble
GROAN
33.44% like mumble
SNIGGER
33.44% like mumble
BLURT
33.44% like mumble
GIGGLE
33.44% like mumble
GABBLED
33.44% like mumble
WHISPERING
33.44% like mumble
JABBER
33.44% like mumble
STAMMERING
33.44% like mumble
WHISPERED
33.44% like mumble
EMBARRASSEDLY
33.44% like mumble
CHUCKLE
33.44% like mumble
MURMURED
33.44% like mumble
INAUDIBLY
33.44% like mumble
UNINTELLIGIBLY
33.44% like mumble
YELL
33.44% like mumble
BABBLING
33.44% like mumble
SHOUT
33.44% like mumble
GRUMBLES
33.44% like mumble
HARRUMPH
33.44% like mumble
STUTTER
33.44% like mumble
SHUSH
33.44% like mumble
GABBLING
33.44% like mumble
PRATTLE
33.44% like mumble
GRUNT
33.44% like mumble
SHRUG
33.44% like mumble
SPEAK
33.44% like mumble
MUTTERINGS
33.44% like mumble
GARBLE
33.44% like mumble
SNEER
33.44% like mumble
GESTICULATE
33.44% like mumble
SIGHS
33.44% like mumble
SIGH
33.44% like mumble
GIBBER
33.44% like mumble
BLURTED
33.44% like mumble
BLABBER
33.44% like mumble
INCOHERENTLY
33.44% like mumble
WHISPERY
33.44% like mumble
WHINE
33.44% like mumble
SNICKERING
33.44% like mumble
CROAKY
33.44% like mumble
SHEEPISHLY
33.44% like mumble
SMIRK
33.44% like mumble
APOLOGETICALLY
33.44% like mumble
SHOOSH
33.44% like mumble
MOAN
33.44% like mumble
GRUMBLING
33.44% like mumble
CROAK
33.44% like mumble
MOUTHING
33.44% like mumble
SHUDDUP
33.44% like mumble
CHUCKLING
33.44% like mumble
SPLUTTER
33.44% like mumble
ENUNCIATE
33.44% like mumble
MURMURS
33.44% like mumble
GRIMACE
33.44% like mumble
EXCLAIM
33.44% like mumble
SHRUGGING
33.44% like mumble
SILENTLY
33.44% like mumble
PRATTLED
33.44% like mumble
GASP
33.44% like mumble
BLURTING
33.44% like mumble
YAMMER
33.44% like mumble
WHISPERS
33.44% like mumble
GRUNTS
33.44% like mumble
INARTICULATE
33.44% like mumble
TALK
33.44% like mumble
SHEEPISH
33.44% like mumble
GURGLE
33.44% like mumble
WHISPERINGLY
33.44% like mumble
SQUAWK
33.44% like mumble
STUTTERED
33.44% like mumble
MUFFLED
33.44% like mumble
GUFFAW
33.44% like mumble
STARE
33.44% like mumble
BREATHILY
33.44% like mumble
RAMBLE
33.44% like mumble
GIBBERISH
33.44% like mumble
EXASPERATEDLY
33.44% like mumble
SLURRED
33.44% like mumble
BELCH
33.44% like mumble
LAUGH
33.44% like mumble
GUTTURALLY
33.44% like mumble