rampant

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

Antonyms: checked controlled limited restrained