The quality or state of being dated; the characteristic of appearing to belong to a specific time in the past rather than being timeless.
From 'dated' plus the noun-forming suffix '-ness'. This abstract noun compounds the sense of temporal specificity, creating a word for the essence of being marked by time.
The datedness of slang is fascinating—words like 'groovy' and 'radical' instantly mark the era they came from, making them useful cultural time capsules for historians.
Complete word intelligence in one call. Free tier — 50 lookups/day.