taciturn
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/icons/point.icon SILENT, TACITURN, RETICENT, RESERVED, SECRETIVE mean showing restraint in speaking.
SILENT implies a habit of saying no more than is needed.
e.g. the strong, silent type
TACITURN implies a temperamental disinclination to speech and usually connotes unsociability.
e.g. taciturn villagers
RETICENT implies a reluctance to speak out or at length, especially about one's own affairs.
e.g. was reticent about his plans
RESERVED implies reticence and suggests the restraining influence of caution or formality in checking easy informal conversational exchange.
e.g. greetings were brief, formal, and reserved
SECRETIVE, too, implies reticence but usually carries a suggestion of deviousness and lack of frankness or of an often ostentatious will to conceal.
e.g. the secretive research and development division
adjective
(of a person) reserved or uncommunicative in speech; saying little:
｟かたく｠ 無口な, 口数の少ない; むっつりとした(↔ talkative)
e.g. after such gatherings she would be taciturn and morose.
DERIVATIVES
taciturnity |ˌtasəˈtərnədē| noun
taciturnly |ˈtasəˌtərnlē| adverb
ORIGIN
late 18th century: from Latin taciturnus, from tacitus (see tacit).