不穷

不窮
bùqióng
  1. endless
  2. boundless
  3. inexhaustible

CEDICT

Entry Composition

1 不 bù
  1. no; not so
  2. (bound form) not; un-
2 穷 qióng
  1. poor
  2. destitute
  3. to use up
  4. to exhaust
  5. thoroughly
  6. extremely
  7. (coll.) persistently and pointlessly