Antonyms of adj teachable

1 sense of teachable

Sense 1
docile, teachable -- (ready and willing to be taught; "docile pupils eager for instruction"; "teachable youngsters")

INDIRECT (VIA tractable) -> intractable -- (not tractable; difficult to manage or mold; "an intractable disposition"; "intractable pain"; "the most intractable issue of our era"; "intractable metal")

Similarity of adj teachable

1 sense of teachable

Sense 1
docile, teachable -- (ready and willing to be taught; "docile pupils eager for instruction"; "teachable youngsters")
       => tractable (vs. intractable), manipulable -- (easily managed (controlled or taught or molded); "tractable young minds"; "the natives...being...of an intelligent tractable disposition"- Samuel Butler)