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WORDNET DICTIONARY
OXFORD DICTIONARY
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WORDNET DICTIONARY

Noun roughneck has 1 sense

• roughneck(n = noun.person) bully, hooligan, rowdy, ruffian, tough, yob, yobbo, yobo - a cruel and brutal fellow; Array
is a kind of aggressor, assailant, assaulter, attacker
has particulars: bullyboy, muscle, muscleman, skinhead, plug-ugly, tough guy

OXFORD DICTIONARY

THESAURUS

roughneck

Babbitt, Philistine, arriviste, boor, boorish, bounder, bourgeois, bruiser, bullyboy, cad, carlish, churl, churlish, cloddish, clown, clownish, epicier, goon, gorilla, groundling, gun, gunsel, guttersnipe, hatchet man, hellion, holy terror, hood, hoodlum, hooligan, hooliganish, ill-bred fellow, looby, loobyish, lout, loutish, low fellow, lubberly, lumpish, mucker, mug, mugger, muscle man, nouveau riche, parvenu, peasant, plug-ugly, punk, raffish, ribald, rodman, rough, rowdy, rowdyish, ruffian, ruffianly, strong-arm man, terror, torpedo, tough, trigger man, ugly customer, upstart, vulgarian, vulgarist, yahoo, yokel, yokelish

For further exploring for "roughneck" in Webster Dictionary Online