Her essential infelicity was as profound and as enigmatic as ever.

There was a good deal that was enigmatic about her.

It happened that the very vividness of his impressions had often made him the more enigmatic to his friends, and had contributed to an apparent indefiniteness in his sentiments.

The pressure of a hand upon his own roused him to discover the Liane Delorme had seated herself beside him, in a chair that looked the other way, so that her face was not far from his; and he could scarcely be unaware of its hinted beauty, now wan and glimmering in starlight, enigmatic with soft, close shadows.