Sentence examples for insidious undertone from inspiring English sources

But there's an insidious undertone creeping into today's advice to expectant mums, and it's coming from the relatively new field of epigenetics.

It was not right at all; engrained stereotypes, the thoughtless use of words and pictures with their subtle, insidious undertones.

A subtle undertone of sulphur.

While recent presidential elections have had similar racial undertones, the divisions in seem to be more insidious, and potentially dangerous, this election.

But cancer is insidious.

Its progress is insidious.

Subtler, more insidious.

These books are insidious.

Impunity is insidious.

This is very insidious".

An undertone of passion (Bob Geldof)?