1 adj An unresponsive person does not react or pay enough attention to something, for example to an urgent situation or to people's needs.
FORMAL oft ADJ to n (Antonym: responsive)
He was totally unresponsive to the pressing social and economic needs of the majority of the population., ...a cold, unresponsive man.
2 adj If a person or their body is unresponsive, they do not react physically in a normal way, or do not make any movements.
FORMAL I found her in a coma, totally unresponsive.