absolute zero
/ˈæb.səˌlut ˈzi.ɹoʊ/noun
RareNot in standard dictionaries
1
The coldest possible temperature, equivalent to zero on the Kelvin scale, or approximately −273.15 °C, −459.67 °F; a total absence of heat; the temperature at which the motion of all molecules would cease.
2
A person or thing of absolutely no consequence.
#derogatory#slang