Synonyms for Laughable (same or very similar meaning)
WordNet sense 1 (incongruous;inviting ridicule):
absurd, cockeyed, derisory, idiotic, ludicrous, nonsensical, preposterous, ridiculous
WordNet sense 2 (devoid of good sense or judgment):
foolish
WordNet sense 3 (arousing or provoking laughter):
amusing, comic, comical, funny, mirthful, risible
WordNet sense 4 (full of or characterized by humor):
humorous, humourous
From the ODE community, based on WordNet
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