Careful
Serious
Serious adjective - Not joking or playful in mood or manner.
Careful and serious are semantically related in thoughtful topic. Sometimes you can use "Careful" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Mutual synonyms
Both words in one sentence
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On the other hand, enemies or even civilians can also do serious damage with their own cars, so be careful going too far on foot.
Source: Car Fu -
Be careful what you tell very serious people to do, Masayuki.
Source: The Comically Serious - Careful reading reveals reference to Ashley's egg, suggesting that all this mixed parentage has had a serious impact on her eventual species.
Source: Interspecies Romance / Fanfic
Cite this Source
Serious and Careful. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/careful/serious
Careful & Serious. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/careful/serious>.
Serious or Careful. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/careful/serious.
Google Ngram Viewer shows how "careful" and "serious" have occurred on timeline