不透气

不透氣
bùtòuqì
airtight

CEDICT

Entry Composition

1 不 bù
  1. no; not so
  2. (bound form) not; un-
2 透气 tòuqì
  1. to flow freely (of air)
  2. to ventilate
  3. to breathe (of fabric etc)
  4. to take a breath of fresh air
  5. to divulge

Related entries

气密 qìmì airtight
密闭 mìbì
  1. sealed
  2. airtight
闷 mèn
  1. bored
  2. depressed
  3. melancholy
  4. sealed
  5. airtight
  6. tightly closed
你闷了吗？

Are you getting bored?

Source: Tatoeba