adj. 1 boisterous, uproarious, disorderly, noisy, loud, obstreperous, unruly It only takes a couple of rowdy youths to start trouble at a match
n. 2 ruffian, tough, hooligan, yahoo, brawler, lout, Brit lager lout, skinhead, Chiefly US and Canadian hoodlum, hood, Slang Brit bovver boy The police arrested three of the rowdies involved in last night's fight