irresponsive

Adjective

irresponsive (comparative more irresponsive, superlative most irresponsive)

1. That does not respond to stimuli; unresponsive.
   • The church bells, faintly and fitfully heard, clanged their invitation to an irresponsive town; […]1902, Robert Marshall Grade, The Haunted Major
   • At dawn some weeks back it had creaked across the plain, and at a point where the scrub curved, the husband had stopped the horse while the woman parted the tilt and waved goodbye to the bent, irresponsive old man and his dog.1902, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Bush Studies (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 27