Doubt
Problems
Doubt and problems are semantically related in difficulty topic. Sometimes you can use "Doubt" instead a noun "Problems".
Both words in one sentence
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Christie and Billy have marital problems and her friends secretly doubt themselves.
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He has a rather deep and sexy voice, and there is no doubt that he would have no problems doing male-on-male things with Train.
Source: Mr Fanservice / Anime and Manga -
To be fair, though, if the comic version is anything to go by, Chris' antics and the resulting attention no doubt caused plenty of problems for Ralph and his organization.
Source: Film / Kick-Ass 2
Cite this Source
Problems and Doubt. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/doubt/problems
Doubt & Problems. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/doubt/problems>.
Problems or Doubt. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/doubt/problems.
Google Ngram Viewer shows how "doubt" and "problems" have occurred on timeline