1. suffered from oppressive heat; felt uncomfortably hot
Usage: past tense of swelter

Examples

• We sweltered in the un-air-conditioned classroom during the heat wave.
• The athletes sweltered under the blazing summer sun.
• She sweltered in her heavy winter coat on the unexpectedly warm day.
• The workers sweltered in the factory without proper ventilation.
• They sweltered through the outdoor wedding ceremony in July.
• The passengers sweltered on the delayed train with broken air conditioning.