You searched for: “responseless”
responseless (adjective), more responseless, most responseless
Characterized by a lack of reply to a comment or feedback to a question, query, or situation: The responseless audience, gathered in the town square, was worrisome to the authorities who had been expecting a riot as the result of  the new edicts.
This entry is located in the following units: -less (page 5) spond-, spon-, spons-, -spondence, -spondent,
-spondency, -spondencies (page 2)