is similar to
not fixed in position
"the detached shutter fell on him"; "he pulled his arm free and ran"
is similar to
(of a part of the body) not firmly connected; movable or out of normal position
"floating ribs are not connected with the sternum"; "a floating kidney"
is similar to
not firmly or solidly positioned
"climbing carefully up the unsteady ladder"; "an unfirm stance"
see also
not firm or firmly fixed; likely to fail or give way
"the hinge is insecure"