hush-hush

English

Adjective

hush-hush (comparative more hush-hush, superlative most hush-hush)

  1. Secret, not spoken of (or spoken of only in hushed whispers between insiders).
    The spy program was very hush-hush: no-one ever spoke of it.
    • 6 August 1953, “Jet”, in American political and entertainment news.[1], volume 4, Johnson Publishing Company, pages 21-22:
      The sex lottery went over big in its first try with number runners selling tickets and making the entire affair a very hush-hush production.

Synonyms

Noun

hush-hush (uncountable)

  1. secrecy; covert operation
    • 1933, The China Monthly Review, volume 67, page 64:
      I find a very definite policy of hush-hush here about what Japan is doing []