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CARD 4 OF 8
pernicious
adjective
Reveal meaning and examples
Seriously harmful, especially in a gradual or less obvious way.
Persistent rumors had a pernicious effect on trust within the group.
Dictionary practice example.
A rumor about hidden judging rules began to engender suspicion among members of a photography club. An organizer's sarcastic reply threatened to exacerbate the disagreement instead of answering it. The repeated claim had a pernicious effect on cooperation: members stopped sharing equipment because they no longer trusted one another.
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