bore on (verb) bear on/bear upon: concern
Sinonime: bashful, buttoned up, clammed up, closemouthed, hushed,
mute, muted, nonvocal, not forthcoming, not talkative, quiet,
reserved,
secretive,
shy, soundless,
speechless,
still, tight-lipped, tongue-tied, uncommunicative, unsociable, unspeaking, voiceless, wordless, zipped