Busy
Busy adjective - Involved in often constant activity.
Intelligent and busy are semantically related. In some cases you can use "Intelligent" instead an adjective "Busy".
Intelligent
Intelligent adjective - Having or showing quickness of mind.
Busy and intelligent are semantically related. Sometimes you can use "Busy" instead an adjective "Intelligent".
Mutual synonyms
Both words in one sentence
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The protagonists meet progressively more intelligent people as the series continues, none of whom seem to be trying to save the ship, who either dismiss the possibility of fixing it or are simply too busy to care.
Source: Series / The Star Lost -
While certainly intelligent and somewhat nice, she keeps on complaining that nobody cares what she thinks and throws a hissing fit when Jaume - who at the time is insanely busy preparing an army to march out on short notice - doesn't hear her speak, lost in thought.
Source: Literature / The Dinosaur Lords
Cite this Source
Intelligent and Busy. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/busy/intelligent
Busy & Intelligent. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/busy/intelligent>.
Intelligent or Busy. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/busy/intelligent.
Google Ngram Viewer shows how "busy" and "intelligent" have occurred on timeline