Taciturnity, n.
Etymology: [L. taciturnitas: cf. F. taciturnité.]
Habilual silence, or reserve in speaking. The cause of Addison's taciturnity was a natural diffidence in the company of strangers. V. Knox. The taciturnity and the short answers which gave so much offense. Macaulay.
Shades of meaning
Fernald lists taciturnity only as an antonym, under speech.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given