What type of defect is described as not being readily observable during a property inspection?

A defect that is not readily observable during a property inspection is known as a latent defect. Latent defects are issues that are hidden and may not be apparent upon a normal inspection or examination of the property. These defects could include things like hidden water damage, structural problems within walls, or issues with electrical wiring that aren't visible from a surface-level inspection.

Latent defects are typically discovered only through invasive testing or happenstance, such as when the defect causes additional problems to manifest. Understanding the nature of latent defects is important for real estate professionals, as they can significantly impact property value and liability.

The other options have specific meanings that differentiate them from latent defects, such as visible defects which are apparent upon inspection, and superficial defects which may refer to cosmetic issues that do not affect the property's functionality.