'Delcardes pouted a little, made a face at Tu who scowled back, then smiled sunnily and turned on her couch with a lissome movement.'
-The Cat and the Skull
lis·some
[ˈlisəm]
ADJECTIVE
lissom (adjective)
1. (of a person or their body) thin, supple, and graceful.
synonyms: agile · graceful · supple · limber · lithesome · loose-limbed · nimble · deft · flexible · lissome · slender · slim · willowy
antonyms: clumsy
ORIGIN
late 18th cent.: contraction, from lithe + -some.
A Well of Heroes: Two:
Literary Impressions of the Prose and Verse of Robert E. Howard