main force
noun
aggressiveness, brute force, compulsion, controlling force, controlling power, dominant strength, duress, effort, energy, forcefulness, full force, intensity, matchless effort, maxim effort, might, potence, potency, power, powerfulness, pressure, puissance, push, sheer force, sheer power, strength, toughness, unrivaled effort, utter force, vigor
Burton's Legal Thesaurus.
William C. Burton.
2006