This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not disposed to be communicative. See Synonyms at silent.

adj. Tending not to communicate; not communicating.

Not communicative or disposed to impart one's wealth; not liberal; parsimonious.

Not communicative; not disposed to impart one's thoughts; not free to communicate to others; reserved; taciturn.

adj. not inclined to talk or give information or express opinions

"'uncommunicative' style meant as no more than a pleasant aural accompaniment to whatever other activity we are pursuing, the purpose of serious music is that it should be heard with attention; some 'meaning' heard in it."

silent    deadpan    closemouthed    blank    unpronounceable    impassive    secretive    mum    poker-faced    close   

reticent   

reticent    unamiable    distrustful    moody    secretive    impassive    dumpish    ill-tempered    tongue-tied    unemotional