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exceptional

/ɪkˈsɛpʃənəl/ · ek·sɛp·shə·nəl
noun
  1. An exception; something set apart or having an exceptional value. The court made an exception for the elderly during the evacuation.
adjective
  1. Forming an exception; not ordinary; uncommon; rare. What an exceptional flower!
  2. Better than the average; superior due to exception or rarity. The quality of the beer was exceptional.
  3. Corresponding to something of lower dimension under a birational correspondence. An exceptional curve on a surface is a rational curve with self‑intersection –1.
Did you know? The word "exceptional" was first recorded in the 15th century, originally meaning "set apart"; its use to denote superiority emerged in the 17th century.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 15, 2026