subcooled

https://doi.org/10.1351/goldbook.15075
Term applied to a substance that is a liquid at a temperature lower than the saturation temperature for the existing pressure.
Note: Sometimes such a substance is described as a "compressed" liquid since the existing pressure is greater than the saturation pressure for the given temperature.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 951 [Terms] [Paper]