uncommunicative
adjective
[ ʌnkəˈmjuːnɪkətɪv ]
• unwilling to talk or impart information.
• "he had always been quiet and uncommunicative, having few friends"
Similar:
taciturn,
reserved,
shy,
retiring,
diffident,
reticent,
laconic,
tongue-tied,
at a loss for words,
mute,
quiet,
unforthcoming,
unconversational,
untalkative,
silent,
tight-lipped,
close-mouthed,
guarded,
secretive,
secret,
unresponsive,
close,
private,
media-shy,
distant,
remote,
aloof,
withdrawn,
stand-offish,
unsociable,
antisocial,
unfriendly,
clamlike,
mum,
mumchance,
retired,
