Antonyms of adj ingenious

1 sense of ingenious

Sense 1
clever, cunning, ingenious -- (showing inventiveness and skill; "a clever gadget"; "the cunning maneuvers leading to his success"; "an ingenious solution to the problem")

INDIRECT (VIA adroit) -> maladroit -- (not adroit; "a maladroit movement of his hand caused the car to swerve"; "a maladroit translation"; "maladroit propaganda")

Similarity of adj ingenious

1 sense of ingenious

Sense 1
clever, cunning, ingenious -- (showing inventiveness and skill; "a clever gadget"; "the cunning maneuvers leading to his success"; "an ingenious solution to the problem")
       => adroit (vs. maladroit) -- (quick or skillful or adept in action or thought; "an exceptionally adroit pianist"; "an adroit technician"; "his adroit replies to hecklers won him many followers"; "an adroit negotiator")