1. the quality or state of being outdated; the condition of being no longer current, relevant, or in use
Usage: uncountable noun; formal

Examples

• The outdatedness of the software made it difficult to run modern applications.
• She criticized the outdatedness of the company's manufacturing process.
• The outdatedness of those fashion trends became obvious within a few years.
• Despite the outdatedness of the building, it remained structurally sound.
• The outdatedness of the textbook meant students were learning incorrect information.
• He acknowledged the outdatedness of his views on technology.