desultory

adjective4

1. •
   Jumping, or passing, from one thing or subject to another, without order, planning, or rational connection; lacking logical sequence.

   • He wandered round, cleaning up in a desultory way.
   • I teach a class of desultory minds.
2. •
   Out of course; by the way; not connected with the subject.

   • I made a desultory remark while I was talking to my friend.
   • She made a desultory attempt at conversation.
3. •
   Disappointing in performance or progress.
4. •
   (no longer used) Leaping, skipping or flitting about, generally in a random or unsteady manner.