discreet
dih-SKREETadjMeaning careful in what one says or does, especially in keeping secrets
Memory hook dis-CREET: “THIS SECRET stays with me”. Zoe whispers her news, and Kai zips his lips: “This secret stays with me.” He never tells a soul. Kai is discreet.
Be discreet about the surprise party; Grandma notices everything.
In context The nurse was always discreet: she never mentioned a patient’s name outside the clinic, not even at home with her own family.
Similar careful, tactful, guarded, prudent
Opposite indiscreet, careless, tactless
From Latin discretus, “separated,” from discernere, “to tell apart”: a discreet person can tell what to say from what to keep.