How to say "aristocratic" in Japanese

• 貴族的きぞくてき
  na-adjectiveThe core adjectival sense, 'of or characteristic of the aristocracy': it describes an air, manner, or attitude reminiscent of nobles. Relatively uncommon, it fits descriptive writing about a person's bearing or a family's background.
  彼かれの貴族的きぞくてきな作法さほうには感心かんしんする。↗

  I admire his aristocratic manners.
• アリストクラティック
  no-adjectiveA katakana borrowing of the English adjective, used much as in English for an elegant, upper-class look or atmosphere. Relatively uncommon, it appears often in fashion, design, or lifestyle writing.

Both are uncommon choices: 貴族的 is the adjective built on the word for 'aristocrat', used for things characteristic of the nobility, while 「アリストクラティック」 is the katakana loan from English, mostly for an elegant, upper-class look or style.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 貴族的きぞくてきaristocratic
• アリストクラティックaristocratic