Intangibly [adverb]

Irresistibly urging, intangibly irritating, perpetually suggesting, they had prepared him for the dominion of Jane Holland.

And each time he caught that passing look it touched him and intangibly drew him closer to her.

The call upon the contessa left them both with an intangibly unpleasant sensation.

She was evidently a stranger, yet there was something intangibly familiar about her features.

She, as she had been when first he looked upon her, yet intangibly changed, the same yet not the same.

Just now it was the expression of his face, intangibly different—or had she never taken the trouble to notice him before?

The change that had begun subtly, intangibly, was now a terrible and glaring difference.

When he came back to her his voice was lower, his manner intangibly furtive.

There was a strange and intangibly sinister quality in the moonlight that streamed dimly into the winding passage.