Having the lowest temperature compared to other things, or showing the least warmth and friendliness.
From Old English 'ceald'; related to German 'kalt' and Latin 'gelu'; the superlative form 'coldest' adds the suffix '-est' to indicate the extreme degree.
The coldest temperature ever recorded on Earth is -128.6°F (-89.2°C) in Antarctica—at that temperature, carbon dioxide actually freezes out of the air, and metal becomes so brittle it shatters like glass.
Complete word intelligence in one call. Free tier — 50 lookups/day.