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