idle
Not being used appropriately; not occupied; (of time) with no, no important, or not much activity.
Example
“idle hours”
Other meanings
Not engaged in any occupation or employment; unemployed; inactive; doing nothing in particular.
“idle workmen”
Averse to work, labor or employment; lazy; slothful.
“an idle fellow”
Word history
From Old English "īdel".
Where this comes from
This definition is adapted from “idle” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.