Intelligent
Intelligent adjective - Having or showing quickness of mind.
Insidious and intelligent are semantically related. In some cases you can use "Insidious" instead an adjective "Intelligent".
Insidious
Insidious adjective - Working or spreading in a hidden and usually injurious way.
Intelligent and insidious are semantically related. Sometimes you can use "Intelligent" instead an adjective "Insidious".
Nearby Word: insidiously
Mutual synonyms
Related pairs
Cite this Source
Insidious and Intelligent. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/intelligent/insidious
Intelligent & Insidious. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/intelligent/insidious>.
Insidious or Intelligent. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/intelligent/insidious.
Google Ngram Viewer shows how "intelligent" and "insidious" have occurred on timeline