slowest-moving

Adjective

slow-moving (comparative slower-moving or more slow-moving, superlative slowest-moving or most slow-moving)

1. Moving slowly.
   • The merchandise trains of the future will be able to pace the average day and night express without significant loss of track utilisation, but where quadruple track does not exist it may be necessary to seek alternative routes for the slower-moving coal and heavy mineral traffic.1960 February, “Talking of Trains”, in Trains Illustrated, page 67

   Synonyms:

   sullen

   Antonyms:

   fast-moving

2. Of or relating to a situation in which events unfold in slow succession.
3. Of a product or service, that is sold slowly.