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Insidiously - Meaning, Definition & English Examples

Insidiously means acting in a subtle, gradual, or sneaky way that is harmful but not easily noticed. It often describes something dangerous that spreads or worsens without obvious signs.

insidiously

/ɪnˈsɪdiəsli/ /ɪnˈsɪdiəsli/

Definition:

Acting in a subtle, harmful way that develops gradually without being noticed.

Synonyms:

stealthily, subtly, treacherously, deceitfully

Part of Speech:

adverb

Antonyms:

openly, honestly

Common Collocations:

spread insidiously, act insidiously, work insidiously

Derivatives:

insidiousness, insidious

Usage Tips:

Use "insidiously" to describe actions or processes that cause harm subtly over time.

Common Phrases:

creep insidiously, grow insidiously, spread insidiously

Etymology:

From Latin "insidiosus" (deceitful), from "insidiae" (ambush).

Examples:

  • 1. The disease spread insidiously through the population.
  • 2. Her influence grew insidiously within the organization.
  • 3. The toxin works insidiously, damaging organs slowly.
  • 4. He manipulated the situation insidiously to his advantage.

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