a part or piece left hanging, unattached, or unused:
Remind me to tack down that loose end on the stairway carpet.
2.
an unsettled detail, as of a business matter:
The arrangements have been made, except for a few loose ends.
Idioms
3.
at loose ends, in an uncertain or unsettled situation or position:
Ever since leaving the company, he's been at loose ends.
Also, at a loose end.
Origin
1540-50
British Dictionary definitions for loose ends
loose end
noun
1.
a detail that is left unsettled, unexplained, or incomplete
2.
at a loose end, without purpose or occupation
Idioms and Phrases with loose ends
loose ends
Unfinished details, incomplete business. For example, We've not quite finished the project; there are still some loose ends. This expression alludes to the ends of a rope or cable that should be fastened. [ Mid-1800s ]