Definition of disastrous adjective from the Oxford Advanced American Dictionary

     

    disastrous

     adjective
    adjective
    NAmE//dɪˈzæstrəs//
     
     
    jump to other results
  1. 1very bad, harmful, or unsuccessful synonym devastating
  2. 2 a disastrous harvest/fire/result Lowering interest rates could have disastrous consequences for the economy. It was a disastrous start to the season for the team.
disastrously
 
jump to other results
 
adverb How could everything go so disastrously wrong?
See the Oxford Advanced Learner's Dictionary entry: disastrous