Antonyms of adj undiscerning

1 sense of undiscerning

Sense 1
undiscerning (vs. discerning) -- (lacking discernment)

discerning (vs. undiscerning) -- (having or revealing keen insight and good judgment; "a discerning critic"; "a discerning reader")
        => clear, percipient -- (characterized by ease and quickness in perceiving; "clear mind"; "a percipient author")
        => clear-eyed, clear-sighted, perspicacious -- (mentally acute or penetratingly discerning; "too clear-eyed not to see what problems would follow"; "chaos could be prevented only by clear-sighted leadership"; "much too perspicacious to be taken in by so spurious an argument")
        => prescient -- (perceiving the significance of events before they occur; "extraordinarily prescient memoranda on the probable course of postwar relations"-R.H.Rovere)

Similarity of adj undiscerning

1 sense of undiscerning

Sense 1
undiscerning (vs. discerning) -- (lacking discernment)
       => obtuse, purblind -- (lacking in insight or discernment; "too obtuse to grasp the implications of his behavior"; "a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin"- Jasper Griffin)
       => uncomprehending -- (lacking understanding; "tried to explain to her uncomprehending husband")
          Also See-> indiscriminate#2