letter perfect

/ˈlɛtər ˈpɜrfɪkt/
adjective
  1. Exactly correct in every detail; without any errors.
    • He practiced his speech until he could deliver it letter-perfect from memory.
    • Her letter-perfect recitation of the poem impressed the entire class.
    • The accountant double-checked the report until it was letter-perfect.
Antonyms
What does "letter perfect" mean? | whatsthatwordmean | whatsthatwordmean