Synonyms:
aimlessly
Meaning: without aim; in an aimless manner; "he wandered around aimlessly"
Usage examples
He was aimlessly industrious, crotchety but kind, and almost quixotically honest.
You will recall what I represented to you as the medical opinion concerning the dream, the simile of untrained fingers wandering aimlessly over the keys of the piano.
He skirted the school by a field path in case any of those narrow souls paid to employ so aimlessly the precious hours of his youth might be there. They would certainly be tactless enough to question him as he passed the door.