picayune

/ˌpɪkiˈjuːn/
adjective
  1. Trivial, petty, or of little value or importance.
    • They argued over picayune details like the color of the napkins.
    • Don't waste time on such picayune matters; focus on the big picture.
    • His complaints about the temperature seemed picayune compared to the real problems.
noun
  1. A small amount of money; something trivial or insignificant.
    • She dismissed the argument as a picayune not worth her energy.
    • The fine was a mere picayune, hardly a punishment.
    • He paid only a picayune for the old book at the flea market.