roundness

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noun

The degree of accuracy to which a manufactured object intended to be round fulfills that requirement; it is measured by parameters such as TIR (total indicator reading).

Opposite
UncommonScrabble 10

Meanings

nounroundness (usually uncountable, plural roundnesses)

plural roundnesses

  1. The quality or degree of being round.
    1. uncountableusuallybusinessThe degree of accuracy to which a manufactured object intended to be round fulfills that requirement; it is measured by parameters such as TIR (total indicator reading).
    2. uncountableusuallySynonym of rotundity.

      I gazed at her arm. Where was its wonderful roundness and beauty? It was getting thin and angular.

      1886 October – 1887 January, H[enry] Rider Haggard, She: A History of Adventure, London: Longmans, Green, and Co., published 1887, →OCLC

      Synonyms: rotundity

Synonyms & antonyms

nounSynonym of rotundity.

Similar

More synonyms by meaning

nounthe fullness of a tone of voice

Similar

nounthe property possessed by a line or surface that is curved and not angular

Opposite

nounthe bodily property of being well rounded

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Middle Englishroundnesse
  2. Englishroundness

From Middle English roundnesse, equivalent to round + -ness.

Full word history & related roots →
Cite this entry
APA

roundness. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/roundness

MLA

“roundness.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/roundness. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “roundness,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/roundness.

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