Definition
Invisibleness is the quality or state of being invisible; the inability to be seen. It implies a lack of visual perceptibility. Imagine a perfectly clear pane of glass – its invisibleness might make you walk right into it. It's the condition of not reflecting or emitting enough light to be detected by the eye. Unlike something that is visible, invisibleness denotes a lack of visual presence, effectively making something undetectable by sight alone.