2. aloof or indifferent; - Example: "was unresponsive to her passionate advances"
3. not susceptible to suggestion or influence;
WordNet (r) 3.0 (2006):
unresponsive
adj 1: not responding to some influence or stimulus [ant:
responsive]
2: aloof or indifferent; "was unresponsive to her passionate
advances"
3: not susceptible to suggestion or influence