Use 'faintness' to describe temporary physical weakness, often implying the need to sit or lie down.

Physical Condition

'Faintness' often precedes illness or fainting, indicating an initial stage of feeling unwell.

Preceding Sickness

While commonly physical, 'faintness' can metaphorically describe a weak emotional state.

Not Just Physical

Use 'faintness' to convey that something is barely noticeable or perceptible by the senses.

Subtle Perception

In low-lit situations, 'faintness' describes the quality of barely having enough light.

Dim Lighting

'Faintness' can refer to a low volume, useful when highlighting sounds that are difficult to hear.

Quiet Sounds

 And the faintness of those images and the tiny size is only a result of the fact that those galaxies are so far away, the vast distances. And each of those galaxies may contain within it a few billion or even hundreds of billions of individual stars.