smothering
1. [ adjective ] causing difficulty in breathing especially through lack of fresh air and presence of heat
Synonyms: suffocating choking suffocative
Examples:

"the choking June dust" "the smothering soft voices" "smothering heat" "the room was suffocating--hot and airless"

Related terms: breathless
Similar spelling:   smother
  smattering
  smoother
  smotherer
  Smotherman
  Smither
  Smothers
  smothered
  Smitherman
  smatter
  smithereens
  Smithers
  Smathers