come what may
adverb
Roget 474: certainly etc. adj.; for certain, certes [Lat.], sure, no doubt, doubtless, and no mistake, flagrante delicto [Lat.], sure enough, to be sure, of course, as a matter of course, ... show more
Roget 863: post haste, a corps perdu [Fr.], hand over head, tete baissee [Fr.], headforemost†; happen what may, come what may.
Moby thesaurus: at all events, at all risks, at any cost, at any price, compulsorily, from necessity, live or die, necessarily, need, needfully, needs, nolens volens, of necessity, perforce, rain or shine, requisitely, ruat caelum, sink or swim, whatever may happen, whatever the cost ... show more.
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