undemonstrative
[uhn-duh-mon-struh-tiv]
/ ˌʌn dəˈmɒn strə tɪv /
ADJECTIVE
cool
Synonyms
WEAK
aloof
annoyed
apathetic
chill
chilly
distant
frigid
impertinent
impudent
incurious
indifferent
insolent
lukewarm
offended
offhand
offish
procacious
remote
reserved
reticent
solitary
standoffish
unapproachable
uncommunicative
unenthusiastic
unfriendly
uninterested
unresponsive
unsociable
unwelcoming
withdrawn
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.