Vocabulary Builder

Vocabulary Builder

    Improve Your Writing

  • Boost your vocabulary
  • See words in the context of real sentences
  • Learn by association and by definition
  • Master a new lexicon!

Get Started Below

Vocabulary Word

Word: insidious

Definition: treacherous; stealthy; sly; working or spreading harmfully in a stealthy manner; Ex. insidious spreading of dry rot


Sentences Containing 'insidious'

The city was become a mighty graveyard, two thirds of the population had deserted the place, and only the poor, the aged and the sick, remained behind, a sure prey for the insidious enemy.
To judge whether such retaliations are likely to produce such an effect, does not, perhaps, belong so much to the science of a legislator, whose deliberations ought to be governed by general principles, which are always the same, as to the skill of that insidious and crafty animal vulgarly called a statesman or politician, whose councils are directed by the momentary fluctuations of affairs.
There was scrub and long grass all about us, and I did not feel safe from their insidious approach.

More Vocab Words

::: egotistical - egotistic; excessively self-centered(egocentric); self-important; conceited
::: conducive - helpful; contributive; V. conduce; Ex. conduce to/towards
::: flush - redden; blush; flow suddenly and abundantly; wash out by a rapid brief flow of water; N: reddish tinge; blush; brief rush; rush of strong feeling; Ex. flush of pride; ADJ: having surfaces in the same plane; even; blushing
::: accord - agreement
::: maim - mutilate; injure lastingly; disable; cripple; Ex. maimed for life
::: prowess - extraordinary ability; military bravery; Ex. prowess in battle
::: derision - ridicule; ADJ. derisive; CF. derisory
::: niggardly - meanly stingy; parsimonious; N. niggard: stingy person
::: nutrient - nourishing substance; ADJ: providing nourishment
::: splice - join together end to end to make one continuous length; fasten together; unite; Ex. splice two strips of tape; N.