Steadily, imperceptibly, and surely, until it was paramount and supreme.
I had seen it, the slight puff of the earlobes—oh, so imperceptibly slight.
Imperceptibly, Helen straightened herself and took a breath.
Slowly, imperceptibly, the orientation of the planet has changed.
He drifted away from Miriam imperceptibly, without knowing he was going.
But imperceptibly the ...