Read the definition and try to retrieve the word. Say it aloud or write it down before opening the answer.
CARD 2 OF 2
Which word fits this meaning?
Developing subtly or gradually in a harmful way.
adjective
Reveal word and examples
insidious
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.
Reveal the answer first, then make a self-check. Another word may fit the definition; compare with the target word. This is separate from scored quiz accuracy.