Adjective has 1 sense

• suffocative(s = adj.all) smothering, suffocating - causing difficulty in breathing especially through lack of fresh air and presence of heat; "smothering heat"; "the choking June dust"; "the room was suffocating--hot and airless"; "the smothering soft voices"

Derived form verb suffocate₂, verb suffocate₅, verb suffocate₆, verb suffocate₇