responsibleness C2+

/rɪˈspɑnsəbəlnəs/ the quality of being responsible or accountable

responsibly C2+

/rɪˈspɑnsəbli/ in a sensible, accountable, or trustworthy manner

irresponsibility C2+

/ˌɪrɪˌspɑnsəˈbɪlɪti/ the quality of acting without proper care or accountability

responsive C2+

/rɪˈspɑnsɪv/ reacting quickly and positively to something or someone

responsively C2+

/rɪˈspɑnsɪvli/ in a manner that reacts readily and appropriately

responsiveness C2+

/rɪˈspɑnsɪvnəs/ the quality of reacting quickly and positively to stimuli or needs