Definition of mispronunciation in English:

mispronunciation

noun

mass noun
  • Incorrect pronunciation of a word.

    ‘she corrects his mispronunciation of her name’
    count noun ‘she has trouble with misspellings and mispronunciations’

Pronunciation

mispronunciation

/mɪsprənʌnsɪˈeɪʃ(ə)n/