From Longman Dictionary of Contemporary Englishsheer luck/happiness/stupidity etcsheer luck/happiness/stupidity etcVERYluck, happiness etc with no other feeling or quality mixed with it SYN pure I’ll never forget the look of sheer joy on her face. sheer hypocrisy → sheer
Examples from the Corpus
sheer luck/happiness/stupidity etc• She flung out her hands and caught the edge of the stone by sheer luck.• So I guessed right; sheer luck.• Would anybody see if I just nudged them over the edge for their sheer stupidity?• He made it through sheer luck and by attaching himself to one guy after another and then stepping over them.• By sheer luck I had given Reuters their biggest news scoop since the assassination of Abraham Lincoln in 1865. 