1.
If a container has a ~ seal, the seal is very tight so that no air can get in or out. (TECHNICAL)
= airtight
ADJ: ADJ n
~ally
The batteries are designed to be leak-proof and ~ally sealed.
ADV: ADV -ed, ADV after v
2.
You use ~ to describe something which you disapprove of because it seems to be totally separate from other people and things in society. (WRITTEN)
Its film industry operates in its own curiously ~ way...
Their work is more cosily ~ than ever.
ADJ disapproval