sealed

established irrevocably

• “his fate is sealed”

closed or secured with or as if with a seal

• “my lips are sealed”
• “the package is still sealed”
• “the premises are sealed”

undisclosed for the time being

• “sealed orders”
• “a sealed move in chess”

determined irrevocably

• “his fate is sealed”

having been paved

covered with a waterproof coating

• “a sealed driveway”

(of walls) covered with a coat of plaster

closed so tightly as to be airtight or watertight