most enigmatical

She remained in a pose of most enigmatical quietude.

But the most enigmatical point in the riddle of life is not life itself, which is a form of being, and is neither more nor less comprehensible than the existence of an inanimate object, of a stone, of water, of the air; it is consciousness.

Roberts joked incessantly, and Dr. Sanborn held him a good second, while Mason said the most enigmatical things in his smooth, melodious bass.

I was thinking of you, Leo; the fact is that I am more and more convinced that you are the strangest, most enigmatical human being on God's earth.

The production of a hidden hoard showed that this most enigmatical Englishman was really in earnest.