by main force

adverb

Roget 159: strongly etc. adj.; by force etc. n.; by main force etc. (by compulsion) 744.   

Roget 173: violently etc. adj.; amain^†; by storm, by force, by main force; with might and main; tooth and nail, vi et armis [Lat.], at the point of the sword, at the point of the bayonet; at one fell swoop; with a high hand, through thick and thin; in desperation, with a vengeance; a outrance^†, a toute outrance [Fr.]; headlong, head foremost.    ... show more

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