Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb hush-up

2 senses of hush up

Sense 1
whitewash, gloss over, sleek over, hush up -- (cover up a misdemeanor, fault, or error; "Let's not whitewash the crimes of Stalin"; "She tried to gloss over her mistakes")
       => cover, cover up -- (hide from view or knowledge; "The President covered the fact that he bugged the offices in the White House")

Sense 2
hush, quieten, silence, still, shut up, hush up -- (cause to be quiet or not talk; "Please silence the children in the church!")
       => suppress, stamp down, inhibit, subdue, conquer, curb -- (to put down by force or authority; "suppress a nascent uprising"; "stamp down on littering"; "conquer one's desires")

Antonyms of adj hushed-up

1 sense of hushed-up

Sense 1
hushed-up -- ((used of information or news) kept secret by using influence; "hushed-up stories sometimes leak out")

INDIRECT (VIA suppressed) -> publicized, publicised -- (made known; especially made widely known)

Similarity of adj hushed-up

1 sense of hushed-up

Sense 1
hushed-up -- ((used of information or news) kept secret by using influence; "hushed-up stories sometimes leak out")
       => suppressed (vs. publicized) -- (kept from public knowledge by various means;)