Bottomless
Bottomless adjective - Being or seeming to be without limits.
Dubious and bottomless are semantically related. In some cases you can use "Dubious" instead an adjective "Bottomless".
Nearby Word: bottom
Dubious
Dubious adjective - Giving good reason for being doubted, questioned, or challenged.
Bottomless and dubious are semantically related. Sometimes you can use "Bottomless" instead an adjective "Dubious".
Mutual synonyms
Both words in one sentence
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Black Mesa features a wealth of Bottomless Pits and absurdly large rooms of dubious utility, particularly in the places the tram-lines run through, and deserves special mention for its truly gargantuan bio-dome enclosures and numerous cavernous sewers.
Source: Unnecessarily Large Interior
Cite this Source
Dubious and Bottomless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/bottomless/dubious
Bottomless & Dubious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/bottomless/dubious>.
Dubious or Bottomless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/bottomless/dubious.
Google Ngram Viewer shows how "bottomless" and "dubious" have occurred on timeline