1. Noisy and lacking in restraint or discipline
   "a robustious group of teenagers"
   - boisterous, rambunctious [N. Amer], rumbustious [Brit], unruly

See also: disorderly

• unmown
• unmuffle
• unmusical
• unmusically
• unmutilated
• unmuzzle
• unmyelinated
• unnameable
• unnamed
• unnatural
• unnaturalised
• unnaturalized
• unnaturally
• unnaturalness
• unnavigable
• unnecessarily
• unnecessary
• unneeded
• unneighborliness
• unneighborly
• unneighbourliness
• unneighbourly
• unnerve
• unnerved
• unnerving