incommunicative
uncommunicative
brief
brusque
close
close-lipped
close-tongued
concise
curt
dark
discreet
dumb
economical of words
evasive
indisposed to talk
laconic
mum
mute
quiet
reserved
reticent
secret
secretive
shifty
short
silent
snug
sparing of words
speechless
taciturn
terse
tight-lipped
tongue-tied
unloquacious
untalkative
wary
word-bound
wordless
Ciceronian
antinational
assimilative
cannie
circumspect
connectionless
family-owned
fence-mending
hardy-looking
irremovable
lily-white
nervy
overwrought
poah
pro-german
purposive
right-minded
roommate
spoony
ultra-conservative
unconscientious
under-valued
unwelcoming
vault-like