misassumption

noun
mis·​as·​sump·​tion | \ ˌmis-ə-ˈsəm(p)-shən How to pronounce misassumption (audio) \
plural misassumptions

Definition of misassumption

: something that is incorrectly assumed to be granted or true : a mistaken assumption I shudder to think of how much margarine I ate growing up on the misassumption that it was somehow healthier.— Richard T. Bosshardt

Other Words from misassumption

misassume \ ˌmis-​ə-​ˈsüm How to pronounce misassume (audio) \ transitive verb misassumed; misassuming
… a lot of boys get shunted into programs that misassume what they can and can't do … — Richard Whitmire

First Known Use of misassumption

1860, in the meaning defined above

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The first known use of misassumption was in 1860

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a period when something is suspended

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