1. beyond a shadow of a doubt - Adverb
2. beyond a shadow of a doubt - Phrase
in a manner or to a degree that could not be doubted
Source: WordNetWhat's going on?” I whispered to Gina. "Management is proving beyond a shadow of a doubt they don't have enough to do,” she murmured back. "So they've invented a new acronym. Connie Willis
What I know beyond a shadow of a doubt is that God is with me. I know that. I know that He's always been with me. It is evident in everything I have endured-and the fact that I made it through with some sanity. Tyler Perry
it was immediately and indubitably apparent that I had interrupted a scene of lovers Source: Internet
his guilt was established beyond a shadow of a doubt Source: Internet