soft-spoken
keep a civil tongue in one's head
blandiloquent
unstammering
unstuttering
tongued
unmincing
talk up
subvocaliser
squeak
unspeakingly
subvocalizer
blabbermouthed
peep
all mouth and trousers
murmurlessly
unreticent
get going
averbal
talkatively
underspeak
flap one's gums
quiet
yappy
tongue
accentless
pseudoverbal
maunder
mumble
mussitate
mutter
so to speak
as we say
spokewise
utterance
volubly
low
articulate
unshouting
chattily
civil tongue
dulciloquy
buzz
speechfulness
voicedly
bigmouthed
speaking
puff
spoken
murmurousness
pardon me
mouthful of marbles
converseness
pipe up
a closed mouth gathers no feet
gas
plain-spoken
pantomime
a closed mouth catches no flies
mouth the words
talkativeness
nonmute
lispy
talksome
unmurmuring
bark
mouthable
delivery
shoot from the lip
talk at
pontificate
shibboleth
jabber
wordlessly
mouth off
give lip
waste breath
rant
rave
silent
honey-mouthed
rabbit on
taciturnly
spout
silently
mutely
mouth
convo
chunter
overloudness
non-verbal
smooth talk
unengagingly
unspeakingness