Lock up and Unfasten

Opposite meaning terms

Lock up verb - To put in or as if in prison.

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Unfasten is an antonym for lock up in topics: attach, grasp, obligate, obtain.

Unfasten verb - To disengage the knotted parts of.

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Lock up is an antonym for unfasten.

Nearby Word: unfastening

Cite this Source

Unfasten and Lock up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/lock_up/unfasten

Lock up & Unfasten. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/lock_up/unfasten>.

Unfasten or Lock up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/lock_up/unfasten.

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