DictionaryidleInactive or unoccupied
adjective / verb

idle

EYE-dul/ˈaɪdl/

Inactive with respect to productive work.

The sewing machine sits idle on the table, its cord unplugged.

An intact electric sewing machine sits unused on a small worktable, with its power plug visibly disconnected and no fabric under the stationary needle.
Etymology

Old English idel meant “empty” or “useless.” In English, this developed into “not doing work,” first for people and later for things and machinery; the word’s deeper origin is unknown.

In context

Empire of the Mind32:20
an idle and inactive leisure." We can only see the sublimity of things by acting and being active.
The BEDROOM & the PROFUNDITY of Pieter De Hooch: Feat. Some Aristotle, Arendt, Jung, Seneca, & Bible

More examples

  • The crew remains idle while waiting for supplies.
  • The bus idles at the curb while passengers board.
  • Please avoid leaving your engine idling in the driveway.

Forms

idle · idler · idlest · idles · idled · idling

idleness noun — The state of not doing useful work.

Similar words

inactive
Describes lack of activity, not specifically lack of productive work.
unoccupied
Describes someone with no task or activity at hand.
unused
Describes something not being used, rather than a running engine.