Antonyms of adj palatable

1 sense of palatable

Sense 1
palatable (vs. unpalatable), toothsome -- (acceptable to the taste or mind; "palatable food"; "a palatable solution to the problem")

unpalatable (vs. palatable) -- (not pleasant or acceptable to the taste or mind; "an unpalatable meal"; "unpalatable truths"; "unpalatable behavior")
        => brackish -- (distasteful and unpleasant; spoiled by mixture; "a thin brackish gruel")
        => distasteful, unsavory, unsavoury -- (not pleasing in odor or taste)

Similarity of adj palatable

1 sense of palatable

Sense 1
palatable (vs. unpalatable), toothsome -- (acceptable to the taste or mind; "palatable food"; "a palatable solution to the problem")
          Also See-> appetizing#1, appetising#1; edible#1, comestible#1, eatable#1; tasty#1