Antonyms of adj adorable

1 sense of adorable

Sense 1
adorable, endearing, lovely -- (lovable especially in a childlike or naive way)

INDIRECT (VIA lovable) -> hateful -- (evoking or deserving hatred; "no vice is universally as hateful as ingratitude"- Joseph Priestly)

Similarity of adj adorable

1 sense of adorable

Sense 1
adorable, endearing, lovely -- (lovable especially in a childlike or naive way)
       => lovable (vs. hateful), loveable -- (having characteristics that attract love or affection; "a mischievous but lovable child")