hush hush (adjective) hush-hush: secret
Sinonime: abyssal, aquatic, boating, cruising, deep-sea, marine, maritime, naval, navigating, navigational, oceangoing, oceanic, oceanographic, pelagic, rowing, sailing, sailorly, salty, sea-loving, seafaring, seagoing,
ship, thalassic, yachting
Antonime: known,
public, revealed, told