Antonyms of adv responsibly

1 sense of responsibly

Sense 1
responsibly -- (in a responsible manner; "we must act responsibly")
       Antonym of irresponsibly (Sense 1)
      => irresponsibly -- (in an irresponsible manner; "he acted irresponsibly")

Synonyms of adv responsibly

1 sense of responsibly

Sense 1
responsibly -- (in a responsible manner; "we must act responsibly")