Intelligent
Intelligent adjective - Having or showing quickness of mind.
Radical and intelligent are semantically related. In some cases you can use "Radical" instead an adjective "Intelligent".
Radical
Radical adjective - Being very far from the center of public opinion.
Intelligent and radical are semantically related. Sometimes you can use "Intelligent" instead an adjective "Radical".
Both words in one sentence
- The Radical Entertainment games reinvent Tiny completely, making him a soft spoken, intelligent, and somewhat wimpy cohort of Cortex, almost a complete antithesis of his original self.
Source: Characterization Marches On -
And when McNinja learns that a future disaster he's asked to prevent (hyper-intelligent dinosaurs take over the Earth) is not a scheme of King Radical, and thus in that future King Radical's plans have failed, he suggests he might not be interested in preventing it.
Cite this Source
Radical and Intelligent. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/intelligent/radical
Intelligent & Radical. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/intelligent/radical>.
Radical or Intelligent. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/intelligent/radical.
Google Ngram Viewer shows how "intelligent" and "radical" have occurred on timeline