To become less cold or frozen, returning to a liquid state
Examples:
The lake thawed in March.After the long winter, the ground began to thaw.Frozen pipes may burst as they thaw too quickly.
Synonyms:
Antonyms:
Unthaw
To make something frozen become no longer frozen
Examples:
She left the meat in the fridge to unthaw before cooking.After an hour in the sun, the ice cream began to unthaw.The frozen car windows began to unthaw as the heater warmed up.
Synonyms:
Antonyms:
Ways to tell them apart:
Although unthaw sounds like it should mean the opposite of thaw, it is often used incorrectly to mean the same as thaw.
Thaw is the correct term to describe the process of ice or frozen items melting or becoming unfrozen.
Remember that thaw is what happens when something cold becomes warm or melts.
You can associate unthaw with confusion because it uses a prefix that usually negates or reverses, but not in this case.
Stick to thaw for clarity, as unthaw is considered incorrect by some but understood in context.