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CARD 2 OF 3

insidious

adjective

Reveal meaning and examples

Developing subtly or gradually in a harmful way.

The insidious spread of resentment weakened the team's cooperation.

Dictionary practice example.

An insidious alternative reduced maintenance time in tiny stages, hiding the harmful cumulative loss of working capacity until several tools could no longer be used.

From A Shortcut That Changed the Whole Proposal.

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