Problem
Problem noun - Something that requires thought and skill for resolution.
Unsolved problem and problem are semantically related. In some cases you can use "Unsolved problem" instead a noun "Problem".
Nearby Words: problematic, problematical
Unsolved problem
Problem and unsolved problem are semantically related. You can use "Problem" instead a noun phrase "Unsolved problem".
Mutual synonyms
Related pairs
- question and problem
- question and unsolved problem
- riddle and problem
- riddle and unsolved problem
- secret and problem
- secret and unsolved problem
- puzzle and problem
- puzzle and unsolved problem
- enigma and problem
- enigma and unsolved problem
- mystery and problem
- mystery and unsolved problem
- quandary and problem
- quandary and unsolved problem
Cite this Source
Unsolved problem and Problem. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/problem/unsolved_problem
Problem & Unsolved problem. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/problem/unsolved_problem>.
Unsolved problem or Problem. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/problem/unsolved_problem.
Google Ngram Viewer shows how "problem" and "unsolved problem" have occurred on timeline