impalpably

Then the lurking and inevitable shadow of that life had impalpably and suddenly fallen upon him.

Sitting there day after day with her sewing, she speculated about the mystery which hung impalpably yet undeniably over the house.

Suggestion is still the essence of this, but it is suggestion conveyed more delicately and impalpably.

Miss Northrop stopped short and looked at him with brows a little raised, and her bearing became impalpably more distant.

A mysterious, vague shape grew impalpably upon the strained vision; a horse sneezed, then nickered eagerly.