Definition of irresponsive in US English:

irresponsive

adjective

  • Not responsive to someone or something.

    ‘I trust I am not irresponsive to you in this respect’
    • ‘In his irresponsive condition Tommy can't know about this gift and therefore cannot properly receive it.’

Pronunciation

irresponsive

/ˌirəˈspänsiv//ˌɪrəˈspɑnsɪv/