The phrase "unavoidable byproduct" means something that is unintentionally produced as a result of another process and cannot be prevented. Full definition
Meanwhile, the ST showed some low - speed push here, an almost unavoidable byproduct of its front - engine, front - wheel drive design. (autoguide.com)
Misfolded antibodies are unavoidable byproducts in the ER upon massive production of antibodies, and they were believed to activate the XBP - 1 transcription factor, which was arguably one of the most important factors in correcting protein misfolding problems and expanding the size of the ER. (wistar.org)
It's a near - unavoidable byproduct of addressing failure with anything less than the weight of tragedy. (avclub.com)