ultrathin

U1L1T1R1A1T1H4I1N1

adjective

Extremely thin; of utmost thinness.

UncommonScrabble 12

Meanings

adjectiveultrathin (not comparable)
  1. not comparableExtremely thin; of utmost thinness.

    When you build your esteem on the media's ultrathin, superslim image, you are going to lose by comparison.

    2001, Charles R Gerber, Christ-Centered Self-Esteem
    1 more example

    Planar metamaterials with subwavelength thickness, or metasurfaces, consisting of single-layer or few-layer stacks of planar structures, can be readily fabricated using lithography and nanoprinting methods, and the ultrathin thickness in the wave propagation direction can greatly suppress the undesirable losses.

    2016 May 24, Hou-Tong Chen, Antoinette J Taylor, Nanfang Yu, “A review of metasurfaces: physics and applications”, in arXiv, archived from the original on 04 Mar 2022

Origin

  1. Proto-Indo-European*h₂el-
  2. Latinūls
  3. Latinultrā
  4. Englishultra-
  5. Proto-West Germanic*þunnī
  6. Old Englishþynne
  7. Middle Englishthinne /thenne /thünne
  8. Englishthin
  9. Englishultrathin

From ultra- + thin.

Full word history & related roots →

Translations

Greek υπέρλεπτος
  • υπέρλεπτος (ypérleptos)extremely thin
Cite this entry
APA

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

MLA

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

Chicago

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

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