
Desultorily
Plan-less Action
Use 'desultorily' to describe an action done without purpose or clear intention, often aimlessly. 
Subtle Disinterest
'Desultorily' often hints at a very mild, unobvious lack of engagement or concern. 
Not Random
Despite meaning 'aimlessly', 'desultorily' doesn’t imply randomness, but a lack of focus. 