There was an almost imperceptible shuffle on the stairs.
My shadow, briefly cutting sunlight, changes the land's chemistry in imperceptible ways that make us one.
A slight almost imperceptible vibration of the vessel was felt.
I could hear the call going along the line, but then at the final moment, instead of ringing, there was a strange, almost imperceptible hiccup.
He lived in a world of fine gradations and imperceptible shades.
On these repeat visits, subtle qualities gradually reveal themselves which were initially almost imperceptible .
By appearance it's an almost imperceptible , narrow slot in the pavement that runs alongside a sidewalk from the bottom to the top of a hill.
She stole a glance at him and he gave her an almost imperceptible nod.
I think there's an imperceptible incline, which makes sense as I was following the river upstream, so no cruising.
Almost imperceptible on screen, it is actually made up of tiny chickens' feet and is repeated on the buttons of her dress.