adj. 25B6; adjective
discreet enquiries : CAREFUL, circumspect, cautious, wary, chary, guarded; tactful, diplomatic, prudent, judicious, strategic, politic, delicate, sensitive, kid-glove; informal softly-softly.
discreet lighting : UNOBTRUSIVE, inconspicuous, subtle, low-key, understated, subdued, muted, soft, restrained.