Sub-zero

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    below 0°C; freezing cold not-comparable

    "Several days of sub-zero temperatures caused icicles up to 1.5 metres long to form in tunnels across Greater Manchester, Lancashire and Cumbria."

  2. 2
    below 0°F (−18°C) US, not-comparable

Synonyms

All synonyms
algidarcticbelow zerobitingbitterbitterly cold

Example

More examples

"Braving sub-zero temperatures, the men danced for nearly half an hour, up to their waists in the freezing water, pushing away chunks of ice floating on the river."

Etymology

From sub- + zero.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.