1. the quality of being hot, humid, and uncomfortable
2. the quality of being sexually attractive in a passionate or sensual way

Examples

• The sultriness of the summer evening made it difficult to sleep.
• We escaped the sultriness of the city by heading to the mountains.
• The air conditioning provided relief from the day’s sultriness.
• Her sultriness captivated everyone at the party.
• The actress was known for her natural sultriness on screen.
• The tropical climate’s sultriness took some getting used to.