Thesaurus
Synonyms & Antonyms of impetus
something that arouses action or activity
- the reward money should be sufficient impetus for someone to come forward with information about the robbery
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“Impetus.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impetus. Accessed 25 Jan. 2022.
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The first known use of impetus was in 1641
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