IRRESPONSIBLE
Source: 566, 567
irresponsible. Irresponsible, a. not liable to answer
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Ir′re‐spon″si‐ble (?), a. [[Pref. ir- not + responsible: cf. F. irresponsable.]] 1. 1. Nor responsible; not liable or able to answer for consequences; innocent.
2. 2. Not to be trusted; unreliable.