unerring

/ʌnˈɜrɪŋ/
adjective
  1. Always right or accurate; making no mistakes.
    • The detective's unerring instincts led her straight to the hidden evidence.
    • Her unerring sense of direction helped them find the way home without a map.
    • The archer had an unerring aim and hit the bullseye every time.
Antonyms
What does "unerring" mean? | whatsthatwordmean | whatsthatwordmean