insidieusement

== French == === Etymology === From insidieux +‎ -ment. === Pronunciation === IPA(key): /ɛ̃.si.djøz.mɑ̃/ === Adverb === insidieusement insidiously === Further reading === “insidieusement”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012