Rampant

out of control unrestrained unchecked unruly wild rampaging growing spreading violent aggressive excessive turbulent furious raging prevalent profuse exuberant impulsive impetuous outrageous uncontrollable ungovernable riotous boisterous tumultous/tumultuous vehement rife unbridled wanton flagrant extravagant dominant predominant clamorous on the rampage luxuriant rank epidemic pandemic blustering exceeding bounds fanatical