freezing cold

Freezing cold is an intensified way of describing extremely low temperatures, whether of weather, objects, or sensations.

The phrase is somewhat redundant since freezing already implies cold, but the doubling emphasizes severity: It's freezing cold outside, so bundle up.

People use it both literally for temperatures at or below the freezing point of water and hyperbolically for anything that feels uncomfortably chilly: This office is freezing cold.