"sweltering" in the verb sense
1. swelter
be uncomfortably hot
2. swelter
suffer from intense heat
"we were sweltering at the beach"
"sweltering" in the adjective sense
1. sweltering, sweltry
excessively hot and humid or marked by sweating and faintness
"a sweltering room"
"sweltering athletes"
Source: WordNet® (An amazing lexical database of English)
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