sultry

Merriam-Webster's Word of the Day for July 30, 2026 is: sultry • SULL-tree  • adjective Sultry means “very hot and humid” when it describes such things as seasons, days, and weather. When it describes things humans do and possess—voices, poses, looks, and the like—it means “exciting or capable of exciting strong sexual desire.” // The restaurant's rooftop deck is the place to be on sultry summer nights. See the entry > Examples: “It’s a sultry morning in the Maldives and the mechanic is sweating as he tinkers with the sparkling La Marzocco espresso machine. All the while, hopeful guests watch, desperate for a morning hit.” — Belinda Jackson, The Sydney (Australia) Morning Herald, 15 Nov. 2025 Did you know? Sultry days and glances both burn hot—one literally, and the other figuratively. Sultry is a late 16th century alteration of the obsolete word sulter, itself an alteration of swelter, which since the 14th century has meant “to suffer, sweat, or be faint from heat” and “to become exceedingly hot.” Sweltering on a sultry day may also bring the word muggy to mind; that word comes from an English dialectical word, mug, meaning “drizzle.” Unlike muggy and swelter, sultry, as we said, applies to both literal and figurative heat, as when a singer’s sultry voice brings a figuratively hot vibe.