bollix

/ˈbɑlɪks/
verb
  1. To confuse or make a mess of something; to spoil or ruin.
    • The sudden rain bollixed our plans for an outdoor picnic.
    • He bollixed the recipe by adding salt instead of sugar.
    • I tried to fix the computer, but I only bollixed the settings even more.
Antonyms
What does "bollix" mean? | whatsthatwordmean | whatsthatwordmean