un communicative (adjective) uncommunicative: shy, silent
Sinonime: aloof, buttoned up, clammed up,
close, close-mouthed,
curt,
distant, dried up,
evasive,
guarded, hush-hush, offish, on the QT,
quiet,
reserved,
reticent, retiring,
secretive,
short, standoffish,
taciturn, tight-lipped, unapproachable, unresponsive, unsociable
Antonime: communicative,
confident, extroverted,
responsive