sweltering
nounEtymology From swelter + -ing.
1
The situation of being or feeling hot and humid.
- March 11 1932, Northrop Frye, notebook It is truly a long way from Augustine's ultra-violet perspicacity to our swelterings in the intolerably sapping infra-red, but we are constantly plunging into deeper and deeper black and may rest our eyes in peace sometime.