Now, Kant and his followers start from this second and narrower meaning, and usually narrow it still more by assuming that what appears to the senses is as mental as the sensation, being undistinguishable from it or from the idea of it, and that an appearance is a mental idea(Vorstellung) of sense; and then they conclude that we can know by inference nothing but such mental appearances, actual and possible, and therefore nothing beyond sensory experience.
Leaf spots contained scattered black, undistinguishable stromata with conidiophores that were similar on all hosts.
The thrills of joy and thrills of pain are undistinguishable.
It is by this time mere vegetable mould and undistinguishable pond shore, through which rushes and flags have pushed up.
The litter cabinet is typically a sturdily designed piece of furniture that, when well-crafted, looks pleasant within the home and remains virtually undistinguishable from ordinary furniture.