subfreezing (Meaning)

subfreezing

being or marked by temperature below the freezing point (as of water)

The subfreezing temperatures caused the water in the pool to turn into a solid sheet of ice.
The subfreezing air made it difficult to breathe without shivering.
The car wouldn't start because the battery had been drained in the subfreezing cold.
The hiker suffered from frostbite due to the subfreezing temperatures.
The flowers in the garden wilted and died from the subfreezing overnight temperatures.
The subfreezing weather conditions made it dangerous to go outside without proper clothing.
The water pipes burst because the subfreezing temperatures caused the water inside them to expand.
The subfreezing lake was too cold for anyone to swim in safely.
The subfreezing temperatures prevented the construction crew from pouring concrete.
The subfreezing winds whipped through the cracks in the old windows, making the house impossible to keep warm.

being or marked by temperature below the freezing point (as of water)

polar, chilly, ultracold, icy, cold, gelid,subzero, ice-cold, freezing, cryogenic

fiery, piping hot, searing, igneous, roasting, torrid, warm, red-hot, broiling, hot

The subfreezing temperatures caused the water in the pool to turn into a solid sheet of ice.

The subfreezing air made it difficult to breathe without shivering.

The car wouldn't start because the battery had been drained in the subfreezing cold.

The hiker suffered from frostbite due to the subfreezing temperatures.