insidiously

UK
/ɪnˈsɪdɪəsli/
US
/ɪnˈsɪdiəsli/

Translations

insidiouslyadverb
UK
/ɪnˈsɪdɪəsli/
US
/ɪnˈsɪdiəsli/
The disease spread insidiously through the population.
Болезнь коварно распространилась среди населения.

Definitions

insidiouslyadverb
In a gradual, subtle way, but with harmful effects.
The disease spread insidiously through the population, unnoticed until it was too late.