Fastidious

//fæsˈtɪdi.əs// adj

Definitions

Adjective
  1. 1
    Excessively particular, demanding, or fussy about details, especially about tidiness and cleanliness.

    "He had at first tried to clean up as they ate, his fastidious nature kicking in, but Chris had told him to just stop, he was blocking the TV."

  2. 2
    Overly concerned about tidiness and cleanliness.

    ""If you are fastidious, clean previously used pots inside and out; if not, merely clean the outside (unless you are battling a pest infestation; then the inside will need scrubbing as well).""

  3. 3
    Difficult to please; quick to find fault.

    "You're too fastidious, and too indolent, and too rich."

  4. 4
    Having precise requirements for nutrition and environment (chemical and physical); especially, being difficult to culture because of those requirements.

    "fastidious organism"

Adjective
  1. 1
    giving careful attention to detail; hard to please; excessively concerned with cleanliness wordnet
  2. 2
    having complicated nutritional requirements; especially growing only in special artificial cultures wordnet

Etymology

Borrowed from Latin fastīdiōsus (“passive: that feels disgust, disdainful, scornful, fastidious; active: that causes disgust, disgusting, loathsome”), from fastīdium (“a loathing, aversion, disgust, niceness of taste, daintiness, etc.”), perhaps for *fastutidium, from fastus (“disdain, haughtiness, arrogance, disgust”) + taedium (“disgust”). Cf. French fastidieux.

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