What is another word for below zero?
Pronunciation: [bɪlˌə͡ʊ zˈi͡əɹə͡ʊ] (IPA) 
There are numerous synonyms for the term "below zero," many of which relate to very cold temperatures. Some of the most common include "subzero," "negative," "frigid," "freezing," "icy," and "arctic." Other options might include "polar," "frosty," "glacial," "icy-cold," or even "bone-chilling." Of course, the exact synonym that is most appropriate will depend on the specific degree of coldness being described. Whether you're discussing the weather forecast or just trying to convey how chilly it is outside, having a variety of options for describing below zero temperatures can make your writing or conversation much more interesting and descriptive.
