His tail moved with a soft ominous sinuousness as he looked.
"The Necromancers"
Robert Hugh Benson
He should combine common sense with tact, integrity with indulgence, breadth with keenness, vigor with delicacy, largeness with subtlety, knowledge with geniality, inflexibility with sinuousness, severity with suavity; and, that all these counter qualities be effective, he will need constant culture and vigilance, besides the union of reason with warmth, of enthusiasm with self-control, of wit with philosophy,-but hold: at this rate, in order to fit out the critic, human nature will have to set apart its highest and best.
"Essays Æsthetical"
George Calvert
She slipped closer to me then, with that soft sinuousness of a woman, and I believed she might have kissed me had I not held back, toying with my happiness.
"The Rustlers of Pecos County"
Zane Grey