superunleaded

S1U1P3E1R1U1N1L1E1A1D2E1D2

adjective

of unleaded petrol, that has a higher than normal octane number due to the addition of aromatic hydrocarbons

OriginEnglish unleaded ← Latin super- ← Proto-Italic *super →
Scrabble 17
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Meanings

adjectivesuperunleaded (not comparable)
  1. not comparableof unleaded petrol, that has a higher than normal octane number due to the addition of aromatic hydrocarbons

Origin

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Italic*super
  4. Latinsuper
  5. Latinsuper-
  6. Englishsuper-
  7. Englishunleaded
  8. Englishsuperunleaded

From super- + unleaded.

Full word history & related roots →
Cite this entry
APA

superunleaded. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/superunleaded

MLA

“superunleaded.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/superunleaded. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “superunleaded,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/superunleaded.

Source: superunleaded on Wiktionary, CC BY-SA 4.0.