sweltering• As sultry as a sweltering day in August.• The sky was still blue; the sun, growing in strength, promised a hot sweltering day.• The soldiersmarched on in the swelteringheat.• Testconditions have included a scramble along Glencoe's Aonach Eagach ridge and a two-day back pack in sweltering heat.• Hundreds of children sweltering in the heat went to the neighborhood pool.• Everyone headed for the beach on that swelteringsummerafternoon.• the sweltering summer sun