All 3 Uses
imperceptible
in
The Hunt for Red October
(Auto-generated)
- The reactor plant noises, mainly from pumps that circulated the cooling water, were almost imperceptible.†
Chpt 2. *
- A few seconds later an almost imperceptible noise began as the reactor plant increased power.†
Chpt 12.
- The quartermaster sighed imperceptibly.†
Chpt 13.
Definitions:
-
(1)
(imperceptible) impossible or difficult to perceive
- (2) (meaning too rare to warrant focus)