Antonyms of adj approbative

1 sense of approbative

Sense 1
approving, affirmative, approbative, approbatory, plausive -- (expressing or manifesting praise or approval; "approbative criticism"; "an affirmative nod")

INDIRECT (VIA favorable) -> unfavorable, unfavourable -- (not encouraging or approving or pleasing; "unfavorable conditions"; "an unfavorable comparison"; "unfavorable comments", "unfavorable impression")

Similarity of adj approbative

1 sense of approbative

Sense 1
approving, affirmative, approbative, approbatory, plausive -- (expressing or manifesting praise or approval; "approbative criticism"; "an affirmative nod")
       => favorable (vs. unfavorable), favourable -- (encouraging or approving or pleasing; "a favorable reply"; "he received a favorable rating"; "listened with a favorable ear"; "made a favorable impression")