slow-moving russian

• засто́йный

  stagnant, still, stale (of air)

  stagnant, stagnation-, of stagnation

  congestive

  backward, outdated, hidebound

  slow-moving (of goods), unsaleable

• неходово́й

  unmarketable, not in demand, slow-moving (of goods)

  not operational, unable to move under its own power, out of service

Examples

• Переговоры превратились в вялотекущий процесс.

  The negotiations turned into a slow-moving process.