aberration - definition and synonyms

noun [countable/uncountable] formal 

Your browser doesn’t support HTML5 audio

/ˌæbəˈreɪʃ(ə)n/
singularaberration
pluralaberrations
  1. 1
    something that is not normal or not what you would usually expect

    a genetic aberration

  2. 2
    a short time when someone behaves in a very strange or careless way