Irresponsible

Irresponsible

Adjective · /ɪˌres.pɒnˈsɪ.bəl/

Definition

Not showing a proper sense of responsibility; acting without regard for the consequences of one's actions; not accountable.

Origin

From in- (not) + responsible, from Medieval Latin responsabilis, from Latin respondere (to answer, to respond), from re- (again) + spondere (to pledge). Used in English from the early 18th century.