Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Unclear and difficult are semantically related. in complicated topic. In some cases you can use "Unclear" instead an adjective "Difficult".
Nearby Word: difficulty
Mutual synonyms
Related pairs
- abstruse and difficult
- abstruse and unclear
- unfathomable and difficult
- unfathomable and unclear
- obscure and difficult
- obscure and unclear
- dark and difficult
- dark and unclear
- perplexing and difficult
- perplexing and unclear
- puzzling and difficult
- puzzling and unclear
- mysterious and difficult
- mysterious and unclear
Both words in one sentence
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It is unclear how advanced the Protheans really were, as it can be difficult to distinguish between what they built and what the Reapers built.
Source: Higher-Tech Species -
It is unclear how long the Queen's Building in Townsville, Australia (the dirtier of the two in the image) has been abandoned, and it is difficult to see inside, however it appears that it, too, was boarded up decades ago, complete with stock inside.
Source: Never Recycle a Building -
It's a little unclear if the robot geishas in the very first episode had superhuman strength or not—they had their hostages pinned down in submission holds which would be difficult to break out of in either case.
Cite this Source
Unclear and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/unclear
Difficult & Unclear. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/unclear>.
Unclear or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/unclear.
Google Ngram Viewer shows how "difficult" and "unclear" have occurred on timeline