unjustifiably

/ʌnˈdʒʌstɪfaɪəbli/
adverb
  1. In a way that cannot be justified or defended; without good reason.
    • Prices were raised unjustifiably, causing anger among customers.
    • He was unjustifiably proud of a project he had barely worked on.
    • The teacher unjustifiably blamed the whole class for one student's mistake.
Antonyms
What does "unjustifiably" mean? | whatsthatwordmean | whatsthatwordmean