Exposed to the air
ventilated, opened, freshened, purified, oxygenated, exposed, aerated, hung out,
sunned, dried, spread out.
Antonyms closed*, stuffy, dark.
Exposed to public attention
exposed, disclosed, bruited about, discussed, revealed, told,
expressed, unveiled, publicized, brought to light, advertised, propagated,
made known, made public, published, broadcast, divulged, voiced,
promulgated, spread abroad, disseminated.
Antonyms secret*, undisclosed, concealed.