imperceptible

Modifies a noun

• movement: Near where I am standing, the imperceptible movement of a root has pushed through the foundations of a wall.
• change: They suggest that there has been a slow movement toward morality, with an imperceptible ethical change in every year or at every instant.
• degree: We see at least that such powers are developed in children by imperceptible degrees.
• variation: Laid paper bears almost imperceptible variations in paper thickness.
• nod: Rather, they are a group whose importance seems to be taken as read in an almost imperceptible nod of quiet acknowledgment.
• loss: Alzheimerâs disease starts with gradual, almost imperceptible, loss of brain function, usually first noticed as loss of memory.

Modifying Another Word

• almost: The herb's delicate flowers have five petals with tiny, almost imperceptible black dots along their margins.
• surprisingly: A company based losses at more affect the photographic difference was surprisingly imperceptible.
• virtually: However Mercedes have pioneered a gearbox that makes the change virtually imperceptible.
• nearly: The effect is nearly imperceptible because the composition is so effective.
• quite: At first there was nothing to confide: the shrinking was quite imperceptible.

Used with adjective complement

• become: Or to be more accurate, their aging slowed enough to become almost imperceptible.