In a way that makes it hard to breathe or get enough air.
This word makes people think of feeling trapped or unable to escape.
Examples:
The room was suffocatingly hot.
She felt suffocatingly trapped in the small space.
The blanket was suffocatingly heavy.
The line at the store was suffocatingly long.
The silence in the room was suffocatingly thick.
The smell of the flowers was suffocatingly sweet.