roughness

rough·ness
R1O1U1G2H4N1E1S1S1
Canada, US, UK, Scotland/ˈɹʌf.nəs/Canada, US, UK, Scotland, also/ˈɹʌf.nʌs/Australia, New Zealand/ˈɹɐf.nəs/India/ˈɾəf.nes/

noun

The property of being rough, coarseness.

“The roughness of the road made me wonder if my car would fall apart.”

Opposite
Less commonScrabble 13

Meanings

nounroughness (countable and uncountable, plural roughnesses)

plural roughnesses

  1. countableuncountableThe property of being rough, coarseness.

    The roughness of the road made me wonder if my car would fall apart.

  2. countableuncountableSomething that is rough; a rough spot.

    A variety of suitable methods for surface inspection are available to detect topographical defects induced by surface roughnesses such as scratches, digs, inclusions and spatters.

    2003, Klaus Bange, “Surfaces of Substrate Glasses”, in Thin Films on Glass, Springer Science & Business Media, page 101
  3. UScountableuncountableRoughage; coarse fodder.

    With this latter implement, the corn stalk fodder, shucks, oats, hay and other "roughness" may be finely cut up[…]

    1855, Southern Cultivator, volume 13, page 258
  4. ScotlandcountableuncountableAbundance, especially of food.
  5. countableengineeringA measure of how rough something is, such as a surface

    The surface roughness was low.

Synonyms & antonyms

nouna texture of a surface or edge that is not smooth but is irregular and uneven

Similar
Opposite
Broader

nounthe quality of being harsh or rough or grating to the senses

Similar

nounan unpolished unrefined quality

Similar
Broader

nounused of the sea during inclement or stormy weather

Similar
choppinessrough water
Broader

nounrowdy behavior

Broader

nounthe formation of small pits in a surface as a consequence of corrosion

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Middle Englishroughnes /roughnesse
  2. Englishroughness

Inherited from Middle English roughnes /roughnesse. By surface analysis, rough + -ness. Compare Old English hrēohnes (“roughness”).

Full word history & related roots →

Translations

Ancient Greek τραχύτης
  • τραχύτης (trakhútēs)the property of being rough
Bulgarian грапавост, грапавина
  • грапавост (grapavost)the property of being rough
  • грапавина (grapavina)the property of being rough
  • неравност (neravnost)the property of being rough
Catalan aspredat, aspresa
  • aspredatthe property of being rough
  • aspresathe property of being rough
  • asprorthe property of being rough
Czech hrubost
  • hrubostthe property of being rough
Dutch ruwheid
  • ruwheidthe property of being rough
Esperanto maltrankvileco
  • maltrankvilecothe property of being rough
German Rauheit, Grobheit
  • Rauheitthe property of being rough
  • Grobheitthe property of being rough
Hindi रूखापन
  • रूखापन (rūkhāpan)the property of being rough
Latin asperitās
  • asperitāsthe property of being rough
Latvian raupjums, negludums
  • raupjumsthe property of being rough
  • negludumsthe property of being rough
  • rupjumsthe property of being rough
  • rupjībathe property of being rough
Polish chropowatość
  • chropowatośćthe property of being rough
Romanian asprime, asperitate
  • asprimethe property of being rough
  • asperitatethe property of being rough
Russian шерохова́тость
  • шерохова́тость (šeroxovátostʹ)the property of being rough
Spanish aspereza
  • asperezathe property of being rough
Cite this entry
APA

roughness. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/roughness

MLA

“roughness.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/roughness. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “roughness,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/roughness.

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