Antonyms of private:
public, unrestricted, impersonal, unexclusive, open, semipublic, national, state-supported, in the public eye, outward, well-known, advertised, aired, announced, blazed, broadcast, declared, disclosed, divulged, enunciated, heralded, proclaimed, professed, promulgated, publicized, published, reported, spotlighted, general, popular, prevailing, vulgar, current, prevalent, rife, widespread, communal, shared, common, acknowledged, avowed, aboveboard, straightforward, unconcealed, undisguised, unclassified, clear, evident, manifest, obvious, patent, plain, overt, broad, normal, regular, typical, generic, universal.
Examples of usage:
  1. " Here is the pipe, your excellency," said Christian, " and now, good- by, field- marshal; I have to attend to a little private matter."
    "NAPOLEON AND BLUCHER", L. Muhlbach.
  2. She would have liked to examine it in private.
    "Marjorie Dean, High School Junior", Pauline Lester.
  3. From the sounds we could tell that they had come to the private room of the Clutching Hand.
    "The Exploits of Elaine", Arthur B. Reeve.