Truculent has several meanings, including the above. See examples:
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trucu·lent
1 : feeling or evincing savage ferocity : CRUEL, FIERCE <the fangs of these powerful truculent brutes -- W.H.Hudson died 1922> <the swordfish ... truculent and fearless -- F.C.Lane>
2 : possessing an inherent capacity for destruction : DEADLY <the sleek truculent ships steamed along blackly behind their guns -- Ira Wolfert> <go out and inspect the truculent bomb -- Christian Science Monitor>
3 : scathingly harsh : VITRIOLIC, VITUPERATIVE <a truculent document devoted mostly to vilifying -- Time> <when every English traveler ... published a volume of truculent disparagement -- V.L.Parrington>
4 : aggressively self-assertive : antagonistic to compromise : BELLIGERENT, PUGNACIOUS <as truculent as a small boy who thinks his big brother can lick anybody -- Time> <tribute is paid to ... his rather truculent skill as a negotiator -- Norman MacKenzie>
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