Serious
Serious adjective - Not joking or playful in mood or manner.
Unfunny and serious are semantically related. In some cases you can use "Unfunny" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Unfunny
Unfunny adjective - Not funny; especially failing to achieve the intended humor.
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Synonyms for Unfunny
Both words in one sentence
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Then on Ciel's route, it becomes extremely unfunny when he can't get it down for a much more serious reason: his body is no longer solely his own, and now Shiki has urges to kill people and gets off on it.
Source: Raging Stiffie
Cite this Source
Unfunny and Serious. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/serious/unfunny
Serious & Unfunny. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/serious/unfunny>.
Unfunny or Serious. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/serious/unfunny.
Google Ngram Viewer shows how "serious" and "unfunny" have occurred on timeline