[adj] characterized by oppressive heat and humidity; "the summer was sultry and oppressive"; "the stifling atmosphere"; "the sulfurous atmosphere preceding a thunderstorm"
[adj] burning hot; extremely and unpleasantly hot; "the torrid noonday sun"; "sultry sands of the dessert"
[adj] sexually exciting or gratifying; "sensual excesses"; "a sultry look"; "a sultry dance"