Antonyms of adj undemonstrative

1 sense of undemonstrative

Sense 1
undemonstrative (vs. demonstrative) -- (not given to open expression of emotion)

demonstrative (vs. undemonstrative) -- (given to or marked by the open expression of emotion; "an affectionate and demonstrative family")
        => effusive, gushing (prenominal), gushy -- (extravagantly demonstrative; "insincere and effusive demonstrations of sentimental friendship"; "a large gushing female"; "write unrestrained and gushy poetry")
        => epideictic, epideictical -- (designed primarily for rhetorical display; "epideictic orations")

Similarity of adj undemonstrative

1 sense of undemonstrative

Sense 1
undemonstrative (vs. demonstrative) -- (not given to open expression of emotion)
       => restrained, reticent, unemotional -- (cool and formal in manner)
          Also See-> reserved#2