Plumb and Questionable

Opposite meaning words

Plumb adjective - Having no exceptions or restrictions.

Usage example: a horror movie that's plumb trash and further evidence of the deterioration of popular culture

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Questionable is an antonym for plumb.

Nearby Words: plumbed, plumbing, plumber, plumbic, plumbery

Questionable adjective - Giving good reason for being doubted, questioned, or challenged.

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Plumb is an antonym for questionable.

Cite this Source

Questionable and Plumb. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/plumb/questionable

Plumb & Questionable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/plumb/questionable>.

Questionable or Plumb. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/plumb/questionable.

Google Ngram Viewer shows how "plumb" and "questionable" have occurred on timeline