A group of pre-schoolers who are running around and being very wild are an example of students who would be described as unruly.
Origin of unrulyMiddle English unruely ; from un-, not + reuly, orderly ; from reule, rule
- Difficult or impossible to discipline, control, or rule: The substitute teacher faced unruly students in the classroom.
- Difficult to keep in place or in order: tried to comb his unruly hair; trimmed back the unruly bushes.
Origin of unrulyMiddle English unreuli : un-, not; see un–1 + reuli, easy to govern (from reule, rule; see rule).
(comparative unrulier, superlative unruliest)
From Middle English unruly (“unquiet, restless"), interpreted as un- + rule + -ly (compare Middle English ruly, reuli (“subject to a religious rule, regular")), but also representing a modified continuation of earlier Middle English unrouly, unroly (“unquiet, restless"), equivalent to un- +"Ž roolie. The latter is perhaps from or influenced by an Old Norse word related to Danish urolig (“restless"), Swedish orolig (“restless"), Icelandic Ã³rÃ³legur (“agitated"). Compare also Middle English unroo, unro (“unrest"). More at roo.