sweltering

adj

1. hot and humid; oppressively sticky

   “The day was sweltering, so Lauren put on the shortest pair of shorts she could find and went to get ice-cream with her friend Rob.”

verb

1. (form-of, gerund, participle, present)present participle and gerund of swelter

noun

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.”