Antonyms of adj didactical

1 sense of didactical

Sense 1
didactic, didactical -- (instructive (especially excessively))

INDIRECT (VIA instructive) -> uninstructive -- (failing to instruct)

Similarity of adj didactical

1 sense of didactical

Sense 1
didactic, didactical -- (instructive (especially excessively))
       => instructive (vs. uninstructive), informative -- (serving to instruct or enlighten or inform)