All 12 Uses of

imperceptible
in
Atlas Shrugged

Claude Slagenhop had approached and managed to squeeze himself between Philip and Scudder, shoving Scudder aside imperceptibly.†
Chpt 1.6

She moved her head imperceptibly to let it touch his shoulder for a moment.†
Chpt 2.1

The pale streak of a river came rising slowly from the void, and for a long stretch of time it remained in sight, gliding imperceptibly to meet her.†
Chpt 2.10

He opened the door of his house, moving his arm a shade more slowly than normal, giving an imperceptibly solemn emphasis to his gesture.†
Chpt 3.1

But once, when Galt bent forward and a strand of hair fell down across his face, Akston reached over and brushed it back, his hand lingering for an imperceptible instant on his pupil's forehead: it was the only break of emotion he permitted himself, the only greeting; it was the gesture of a father.†
Chpt 3.1

It seemed to her that she caught an imperceptible shading in his gravely attentive expression: he looked as if this were a matter about which he did not choose to feel.†
Chpt 3.2

She expected her reward on the evening when, by some imperceptible transition, she found herself enjoying a party for the first time.†
Chpt 3.4

She wore a single piece of jewelry, a diamond clip at the edge of the black neckline, that kept flashing with the imperceptible motion of her breath, like a transformer converting a flicker into fire, making one conscious, not of the gems, but of the living beat behind them; it flashed like a military decoration, like wealth worn as a badge of honor.†
Chpt 3.5

And"—he went on speaking while Rearden was lifting him from the ground by imperceptible seconds and inches, speaking as if the trembling intensity of his words were serving as an anesthetic against the pain—"and men can't live ....if rotten bastards ....like the ones in Washington ....get away with things like ....like the one they're doing tonight ....if everything becomes a stinking fake ...and nothing is real ...and nobody is anybody ....men can't live that way ....that's an absolute, isn't it?"†
Chpt 3.6

An odd little light was swinging jerkily far in the distance; it seemed to be advancing at an imperceptible rate; it did not look like any sort of light he could identify.†
Chpt 3.10

Definition:

impossible or difficult to perceive