We have no meanings for "so undemonstrative" in our records yet.
1 Madame Wolsky, though generally so undemonstrative , took Sylvia in her arms and kissed her.
2 He was a good son and brother, yet so undemonstrative that his manner passed at times for indifference.
3 The British are so undemonstrative .
4 A period of constraint followed; and he was so silent, so undemonstrative that the lady gave him a glance of surprise.
5 A more loving father there was not in England, but nature had made him so undemonstrative that as yet they had hardly known his love.
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