Preoccupied
Preoccupied adjective - Lost in thought and unaware of one's surroundings or actions.
Serious and preoccupied are semantically related In some cases you can use "Serious" instead an adjective "Preoccupied".
Nearby Words: preoccupy, preoccupying
Serious
Serious adjective - Not joking or playful in mood or manner.
Preoccupied and serious are semantically related in thoughtful topic. Sometimes you can use "Preoccupied" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Mutual synonyms
Both words in one sentence
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Sort of justified given that the coach is preoccupied with some pretty serious medical and marital problems of his own.
Source: Film / Holidays - Things get worse after the Battle of Ostagar—everyone is too preoccupied with serious internal problems including a civil war and underestimate the true threat level of the Blight.
Source: Outside-Context Problem
Cite this Source
Serious and Preoccupied. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/preoccupied/serious
Preoccupied & Serious. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/preoccupied/serious>.
Serious or Preoccupied. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/preoccupied/serious.
Google Ngram Viewer shows how "preoccupied" and "serious" have occurred on timeline