enigmatic

There was an enigmatic smile bending the scarlet lips as she answered.

All trace of stress and strain had left it, replaced by an enigmatic calm.

There was the enigmatic dimness, though not dense darkness, of the night.

There was an enigmatic smile on his lips whilst he awaited Juve's reply.

Had he been happily inspired to speak so to him of the girl he loved, the enigmatic Wilhelmine?

More than this Juve could not be got to say: he had put on his most enigmatic manner and closed his lips.

It rendered him timorous for a moment before that enigmatic, lighted door.

It was there, secret, hung against her heart, and enigmatic.

Lennox, in struggling up, encountered the demons of enigmatic riddles.

Through the enigmatic laws of life, any kindness is repaid in pain.