undatable

/ʌnˈdeɪtəbəl/
adjective
  1. Not suitable or desirable for a romantic date; unattractive or unappealing as a partner.
    • She worried that her obsession with collecting antique spoons made her undatable.
    • After his rude comments at dinner, everyone agreed he was completely undatable.
    • The dating app profile was so full of complaints that it made the person seem undatable.
  2. Impossible to assign a specific date or time to.
    • The exact year of the folk song's origin remains undatable.
    • Geologists found the rock layer undatable due to a lack of fossil evidence.
    • The ancient manuscript was undatable because the ink had faded completely.
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