defeat, demolish, destroy, disable, discomfit, overthrow, overwhelm, put paid to, ruin, torpedo, undo, wreck
English Collins Dictionary - English synonyms & Thesaurus
scupper ( scuppers 3rd person present) ( scuppering present participle) ( scuppered past tense & past participle ) To scupper a plan or attempt means to spoil it completely.
(mainly BRIT, JOURNALISM) verb
If Schneider had seen him that would have scuppered all his plans... V n
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