Insidious
Insidious adjective - Working or spreading in a hidden and usually injurious way.
Skulking and insidious are semantically related. In some cases you can use "Skulking" instead an adjective "Insidious".
Nearby Word: insidiously
Mutual synonyms
Related pairs
Cite this Source
Skulking and Insidious. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/insidious/skulking
Insidious & Skulking. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/insidious/skulking>.
Skulking or Insidious. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/insidious/skulking.
Google Ngram Viewer shows how "insidious" and "skulking" have occurred on timeline