1The insidious influence of social media on our self-esteem has been extensively studied in recent years.
2Climate change poses an insidious threat to global food security, as rising temperatures and changing precipitation patterns affect crop yields.
3The new policy aimed to address the insidious problem of systemic inequality, which had been perpetuated through generations.
4The insidious disease had been spreading silently for months, its symptoms masked by more visible health issues.
5There is an insidious tendency in modern politics to conflate patriotism with nationalism, which can have far-reaching and damaging consequences.