insidiously

The disease spread insidiously throughout the community.

Insidiously, the company started cutting employee benefits without notice.

The toxic relationship insidiously affected her mental health.

Insidiously, the rumors about her began to spread like wildfire.

The corruption in the government was insidiously concealed for years.

Insidiously, the addiction to social media started to impact his daily life.

The insidiously changing climate patterns are causing concern among scientists.

She insidiously manipulated her way to the top of the company.

The insidiously increasing crime rates are a cause for alarm in the city.

Insidiously, the invasive species began to disrupt the local ecosystem.