From insidieux + -ment. IPA(key): /ɛ̃.si.djøz.mɑ̃/ <span class="searchmatch">insidieusement</span> insidiously “<span class="searchmatch">insidieusement</span>”, in Trésor de la langue française informatisé [Digitized...
masculine plural insidieux, feminine plural insidieuses) insidious <span class="searchmatch">insidieusement</span> “insidieux”, in Trésor de la langue française informatisé [Digitized...
French: <span class="searchmatch">insidieusement</span> (fr) Georgian: ეშმაკურად (ešmaḳurad) Italian: insidiosamente (it) Polish: podstępnie (pl)...