supercautious

adjective
su·​per·​cau·​tious | \ ˌsü-pər-ˈkȯ-shəs How to pronounce supercautious (audio) \

Definition of supercautious

: extremely cautious a supercautious driver The youngish scientists represented here …. are supercautious about supercolliders—they know how easily data can be misinterpreted, how the lust for Nobel Prizes can derange good science.— Peter Rainer

First Known Use of supercautious

1808, in the meaning defined above

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The first known use of supercautious was in 1808

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