work in progress

Short definition from Wiktionary

Noun

1. 1
   Work that has been started, but is not complete.
2. 2
   A project that has been started but is not complete.
3. 3
   Something that is in the process of improving.
4. 4
   A portion of inventory that represents goods which are no longer salable as raw materials, but not yet salable as finished goods, work in process.

Adjective

1. 1
   Attributive form of work in progress.