hermetically

/hɜrˈmɛtɪkli/
adverb
  1. In a way that is completely sealed so that no air or gas can escape or enter.
    • The spacecraft's cabin was hermetically closed before launch to protect the astronauts.
    • Scientists store important samples in hermetically sealed containers to prevent contamination.
    • The jar was hermetically sealed to keep the pickles fresh for years.
  2. In a way that is isolated or cut off from outside influence.
    • The country's economy was hermetically closed to foreign trade during the war.
    • The artist lived a hermetically private life, rarely speaking to the press.
    • The small village remained hermetically cut off from the modern world for centuries.
Antonyms
What does "hermetically" mean? | whatsthatwordmean | whatsthatwordmean