modified
reticent, uncommunicative, silent, mute, speechless, close, mum, curt, close-mouthed, sententious, sparing, not liking to talk; see also quiet 2, reserved 3.
Antonyms talkative*, loquacious, chatty.
See taciturn in Webster's New World Roget's A-Z Thesaurus II
Not speaking freely or openly:
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» clam
» closemouthed
» inarticulate
» incommunicative
» laconic
» oyster
» quiet
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» reticent
» saturnine
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