(adj) Marked by lack of a definite plan, regularity, or purpose; not connected with the main subject; disappointing in progress, performance, or quality.
1. June was frustrated by the team’s desultory approach to the season.
2. The group’s Facebook thread was a mix of running plans and desultory conversation of random thoughts.
3. June watched in disbelief as the desultory trial failed to address or remedy the issue at hand.