Explanation
"Picayune" means something trivial or of little value. Its antonym would be something extremely large or significant, making "Colossal" the correct opposite. The other options (trivial, piddling, trifling) are all synonyms of picayune.
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"Picayune" means something trivial or of little value. Its antonym would be something extremely large or significant, making "Colossal" the correct opposite. The other options (trivial, piddling, trifling) are all synonyms of picayune.