Adverb: beyond a shadow of a doubt
- In a manner or to a degree that could not be doubted
"his guilt was established beyond a shadow of a doubt";
- indubitably, beyond doubt, beyond a doubt, without a doubt, indisputably
See also: by all odds, certainly, decidedly, definitely, emphatically, for certain, for sure, in spades [informal], sure, sure as shooting [informal], sure enough, surely, unquestionably
Encyclopedia: Beyond a shadow of a doubt