suffocating

• "He was not suffocating, as you can see. —  Mother Carey's Chicken Her Voyage to the Unknown Isle
• There was no perceptible shock attending the blow, but the crash was terrific, while the smell of burning was almost suffocating--which is not to be wondered at, since the mass was blazing so fiercely that it set the ship on fire merely by passing through her. —  The Strange Adventures of Eric Blackburn
• Summer is scarcely less frightful in their quarters, with the heat at once stifling, suffocating, almost intolerable; heat which acting on the myriad germs of disease produces fever, often ending in death, or, what is still more dreaded, chronic invalidism. —  The Arena Volume 4, No. 19, June, 1891
• That evening the air was quite suffocating, and it was as hot as an oven. —  The American Baron
• The heat down here was suffocating, and their weary feet moved on slowly through the village--a collection of a few white flat-roofed houses, which are all that now mark the spot where stood once the rich, mighty city of Jericho. —  Six Women

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