undemonstrative
un·de·monst·rative
adjective
1.
not given to open expression of emotion
Origin
From un- + demonstrative.
Related words
See also
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.