ultrafastidious

adjective
ul·​tra·​fas·​tid·​i·​ous | \ ˌəl-trə-fa-ˈsti-dē-əs How to pronounce ultrafastidious (audio) , -fə-\

Definition of ultrafastidious

: extremely or extraordinarily fastidious (as in attention to neatness or detail) an ultrafastidious worker/dresser/housekeeper … an ultrafastidious reconstruction of the 1969 show …— Holland Cotter

First Known Use of ultrafastidious

1847, in the meaning defined above

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The first known use of ultrafastidious was in 1847

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