(figuratively) A futile search, a fruitless errand; a useless and often lengthy task whose execution is inordinately complex relative to the value of the outcome.

A willow of species Salix babylonica, with pendulous branches, native to China.

Untamed; not domesticated; specifically, in an unbroken line of undomesticated animals (as opposed to feral, referring to undomesticated animals whose ancestors were domesticated).

Inaccurately; not on target. / (of an audio recording) Intended to be synchronized with film or video but recorded separately.

The undomesticated state of a wild animal. / (chiefly in the plural) A wilderness. / (often jokingly in reference to sense 2.) civilization at large as opposed to contrived or laboratory conditions.

(intransitive, slang) To commit random acts of assault, robbery, and rape in an urban setting, especially as a gang.

Alternative form of weald

A person's natural inclination; unforced choice / (philosophy) The ability to choose one's actions, or determine what reasons are acceptable motivation for actions, without predestination, fate etc.

An undomesticated felid, as tigers or lions. / A feral cat.

In the absence of a controlling entity, subordinates will take advantage of circumstances.