suffocating
suf·fo·ca·ting
adjective
1.
causing difficulty in breathing especially through lack of fresh air and presence of heat
- “the choking June dust”
- “the smothering soft voices”
- “smothering heat”
- “the room was suffocating--hot and airless”
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.