To save this word, you'll need to log in.
ul·tra·fas·tid·i·ous | \ ˌəl-trə-fa-ˈsti-dē-əs 
, -fə- \
, -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
Keep scrolling for more
Comments on ultrafastidious
What made you want to look up ultrafastidious? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
January 2020 Words of the Day Quiz
- Which is a synonym of bonhomie?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- January 2020 Words of the Day Quiz
Word of the Day quiz returns (again!)
Take the quiz - Intact Latin Quiz
What did each of these words mean to ancient Romans?
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Add Diction
Build a chain of words by adding one letter at a time.
Play the game
Share ultrafastidious
Time Traveler for ultrafastidious
The first known use of ultrafastidious was in 1847
See more words from the same year