Synonyms of the word 
UNTALKATIVE → RETICENT - TACITURN
untalkative
- adj. unwilling to talk; taciturn; refusing to speak.
reticent
- adj. Keeping one's thoughts and opinions to oneself; reserved or restrained.
- adj. (proscribed) Hesitant or not wanting to take some action; reluctant (usually followed by to and a verb…
taciturn
- adj. Silent; temperamentally untalkative; disinclined to speak.
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