Flatten and Knuckle

Opposite meaning words

Flatten verb - To make free from breaks, curves, or bumps.

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Knuckle is an antonym for flatten.

Nearby Words: flatter, flatness, flattening, flatting

Knuckle verb - Press or rub with the knuckles.

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Flatten is an antonym for knuckle in comply topic.

Nearby Words: knuckled, knuckling

Cite this Source

Knuckle and Flatten. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/flatten/knuckle

Flatten & Knuckle. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/flatten/knuckle>.

Knuckle or Flatten. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/flatten/knuckle.

Google Ngram Viewer shows how "flatten" and "knuckle" have occurred on timeline