airtight
01
気密な, 完璧な
having no weak points
02
気密, 空気を通さない
sealed or closed completely to prevent air or gas from entering or escaping
例
The container was airtight, keeping the food fresh for an extended period.
容器は気密で、食品を長期間新鮮に保ちました。
気密な, 完璧な
気密, 空気を通さない
