1) Baking 2) Blazing 3) Blistering 4) Boiling 5) Burning 6) Intense 7) Roasting 8) Scorching 9) Searing 10) Suffering oppressive heat 11) Sultry 12) Sweltry 1) Boiling 2) Burning 3) Hot 4) Humid 5) Sweltry 6) Torrid 7) Tropical 8) Unbearable 
• (p. pr. & vb. n.) of Swelter
[adj] - excessively hot and humid or marked by sweating and faintness
sweltry adjective excessively hot and humid or marked by sweating and faintness; `a sweltering room`; `sweltering athletes`
suffering oppressive heat. · characterized by oppressive heat; sultry.
excessively hot and humid; marked by sweating and faintness excessively hot and humid; marked by sweating and faintness