/ ˈsʌltri; NAmE / adjective
1.
( of the weather or air ) very hot and uncomfortable
SYN muggy :
a sultry summer afternoon
2.
( formal ) ( of a woman or her appearance ) sexually attractive; seeming to have strong sexual feelings
SYN sexy :
a sultry smile
a sultry singer
► sul·tri·ness noun [ U ]
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WORD ORIGIN
late 16th cent.: from obsolete sulter swelter .