'Suffocative' definitions:

Definition of 'suffocative'

From: WordNet
adjective
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" [syn: smothering, suffocating, suffocative]

Definition of 'Suffocative'

From: GCIDE
  • Suffocative \Suf"fo*ca*tive\, a. Tending or able to choke or stifle. "Suffocative catarrhs." --Arbuthnot. [1913 Webster]