Examples from the Web for sphinxlike
His face, human till now, took on its familiar, sphinxlike look.The Girl in the Mirror|Elizabeth Garver Jordan
Katherine for once took up the gauntlet, while one of her sphinxlike smiles hovered about her mouth.
No wonder he “crouches in sphinxlike silence 199 on the curbstone.”The Jessica Letters: An Editor's Romance|Paul Elmer More
The doctor sat with one leg crossed, smoking a cigarette, his expression sardonic, sphinxlike.A Man to His Mate|J. Allan Dunn
The sphinxlike smile hovered round Katherine's mouth; it was enigmatic and horribly tantalizing.