Antonyms of adj responsive

2 of 3 senses of responsive

Sense 2
responsive (vs. unresponsive) -- (readily reacting or replying to people or events or stimuli; showing emotion; "children are often the quickest and most responsive members of the audience")

unresponsive (vs. responsive) -- (not responding to some influence or stimulus)
        => refractory -- (temporarily unresponsive or not fully responsive to nervous or sexual stimuli; "the refractory period of a muscle fiber")

Sense 3
reactive, responsive -- (reacting to a stimulus; "the skin of old persons is less reactive than that of younger persons")

INDIRECT (VIA sensitive) -> insensitive -- (not responsive to physical stimuli; "insensitive to radiation")

Similarity of adj responsive

3 senses of responsive

Sense 1
responsive, antiphonal -- (containing or using responses; alternating; "responsive reading"; "antiphonal laughter")

Sense 2
responsive (vs. unresponsive) -- (readily reacting or replying to people or events or stimuli; showing emotion; "children are often the quickest and most responsive members of the audience")
       => answering, respondent -- (replying; "an answering glance"; "an answering smile")
          Also See-> sensitive#1; sensitive#2

Sense 3
reactive, responsive -- (reacting to a stimulus; "the skin of old persons is less reactive than that of younger persons")
       => sensitive (vs. insensitive) -- (responsive to physical stimuli; "a mimosa's leaves are sensitive to touch"; "a sensitive voltmeter"; "sensitive skin"; "sensitive to light")