Pronunciation: /ɪˈfɛktɪvnəs/
noun the degree to which something is successful in producing a desired result; the ability to produce a desired result
A1 The effectiveness of the medicine was evident in the patient's quick recovery.
A2 Regular exercise can improve the effectiveness of your immune system.
B1 The company implemented new strategies to measure the effectiveness of their marketing campaigns.
B2 The effectiveness of the new software was evident in the increased productivity of the team.
C1 The effectiveness of the new policy was analyzed through extensive research and data collection.
C2 The effectiveness of the training program was measured through a comprehensive evaluation process.
formal The effectiveness of the new drug in treating the disease was proven in clinical trials.
informal She was surprised by the effectiveness of the home remedy for her headache.
slang I can't believe the effectiveness of that new workout routine - I'm already seeing results!
figurative The effectiveness of her argument was like a sharp sword cutting through the opposition's defenses.
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more effective
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has been effective
is being effective
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