Serious
Serious adjective - Not joking or playful in mood or manner.
Unfortunate and serious are semantically related. In some cases you can use "Unfortunate" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Unfortunate
Unfortunate adjective - Bringing about ruin or misfortune.
Serious and unfortunate are semantically related. Sometimes you can use "Serious" instead an adjective "Unfortunate".
Nearby Word: unfortunately
Both words in one sentence
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The back covers list five or more of the "unfortunate events" found within, generally 2 or 3 serious ones and then something quite harmless — or at least that sounds that way.
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An unfortunate side-effect of this is that the closest Jubilee has ever come to a serious relationship is with a guy who lives in another universe.
Source: Intercontinuity Crossover - Much more serious examples are in law, with an unfortunate number as a direct result of the abduction and murder of whoever the law is named after.
Source: Rule-Breaker Rule-Namer
Cite this Source
Unfortunate and Serious. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/serious/unfortunate
Serious & Unfortunate. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/serious/unfortunate>.
Unfortunate or Serious. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/serious/unfortunate.
Google Ngram Viewer shows how "serious" and "unfortunate" have occurred on timeline