indicating or recording lower than zero on some scale, especially on the Fahrenheit scale: a week of sub-zero temperatures.
characterized by or appropriate for sub-zero temperatures: sub-zero climates; sub-zero clothing for the exploration.

Origin of sub-zero Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for subzero

Contemporary Examples of subzero

  • A runaway teen hitched a ride in the wheel well of a plane that reached 38,000 feet and subzero temperatures.

    The Daily Beast logo
    How to Hitchhike a Plane—and Survive

    Kent Sepkowitz

    April 22, 2014

  • I found it emotionally and physically draining because sometimes we filmed in subzero conditions in New York.

    The Daily Beast logo
    Costarring With Dinosaurs

    Maria Elena Fernandez

    September 26, 2011

Historical Examples of subzero

British Dictionary definitions for subzero



(esp of temperature) lower or less than zero
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012