finicky

/หˆfษชnษชki/
adjective
  1. 1

    (of a person) Fastidious and fussy; difficult to please; exacting, especially about details.

    โ€œMy editor is very finicky about punctuation. Every dot and comma has to be just right.โ€

  2. 2

    Demanding; requiring above-normal care.

    โ€œThe lawnmower is a bit finicky in cold weather.โ€

Source: https://en.wiktionary.org/wiki/finicky