fastidious

If you want to describe a person who insists on perfection or pays much attention to food, clothing and cleanliness, the right word is fastidious.

Fastidious is a funny-sounding adjective from the Latin fastidium "loathing" that has several equally strange-sounding synonyms — persnickety, fussbudgety, finicky and punctilious. Fussy and hard to please will also do the trick. Fastidious is occasionally used as a compliment to describe someone whose attention to detail gives them good organizing abilities, but it is usually used as a disapproving term.

Definitions of fastidious
  1. adjective
    giving careful attention to detail; hard to please; excessively concerned with cleanliness
    “a fastidious and incisive intellect”
    fastidious about personal cleanliness”
    Synonyms:
    choosey, choosy
    difficult to please
    dainty, nice, overnice, prissy, squeamish
    excessively fastidious and easily disgusted
    finical, finicky, fussy, particular, picky
    exacting especially about details
    meticulous
    marked by extreme care in treatment of details
    pernickety, persnickety
    characterized by excessive precision and attention to trivial details
    old-maidish, old-womanish
    primly fastidious
    refined
    (used of persons and their behavior) cultivated and genteel
    tidy
    marked by order and cleanliness in appearance or habits
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    Antonyms:
    unfastidious
    marked by an absence of due or proper care or attention to detail; not concerned with cleanliness
    unrefined
    (used of persons and their behavior) not refined; uncouth
    untidy
    not neat and tidy
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  2. adjective
    having complicated nutritional requirements; especially growing only in special artificial cultures
    fastidious microorganisms”
    synonyms: exacting
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    Antonyms:
    unfastidious
    not exacting in nutritional requirements
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