Alternative spelling of bone-idle

(Britain, idiomatic) Utterly lazy.

Viola tricolor, the wild pansy.

plural of idling speed

The speed, measured in revolutions per minute, of an internal-combustion engine when it is running, but is at rest and without power being applied, typically with transmission in neutral.

An asset that is used rarely or never at all.

A threat made by a person who does not mean to carry it out, and which perhaps shouldn't be taken seriously by others.

plural of idle threat

(simile, archaic) Synonym of lazy as Ludlam's dog

Alternative form of Idle hands are the devil's workshop