Choose the perfect synonym or antonym for the word The act of making something better or more effective.
Improvement
/ɪmˈpruːvmənt/Synonyms:
Antonyms:
Examples:
Her grades showed improvement.This plan needs some improvement.
Etymology:
Derived from the Middle English word emprowement, which comes from the Anglo-French emprover, meaning ‘to make better.’ The prefix im- can imply ‘into’ or ‘unto,’ enhancing the positive action of prove or ‘profit.’
Usage Statistics:
43 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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