Stop up and Unfasten

Opposite meaning terms

Stop up verb - To prevent passage through by filling with something.

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Unfasten is an antonym for stop up in obstruct topic.

Unfasten verb - To disengage the knotted parts of.

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Stop up is an antonym for unfasten.

Nearby Word: unfastening

Cite this Source

Unfasten and Stop up. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/stop_up/unfasten

Stop up & Unfasten. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/stop_up/unfasten>.

Unfasten or Stop up. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/stop_up/unfasten.

Google Ngram Viewer shows how "stop up" and "unfasten" have occurred on timeline