Use 'desultorily' to describe an action done without purpose or clear intention, often aimlessly.

Plan-less Action

'Desultorily' often hints at a very mild, unobvious lack of engagement or concern.

Subtle Disinterest

Despite meaning 'aimlessly', 'desultorily' doesn’t imply randomness, but a lack of focus.

Use 'desultorily' when someone reacts without much feeling or enthusiasm, showing indifference.

Use when someone’s involvement is minimal and lacks energy or effort, often out of disinterest.