solecism: A grammatical blunder; a breach of etiquette.

solecism

SOL-ih-siz-uhm, noun

A grammatical blunder; a breach of etiquette.

“Replying-all to decline the party was the season's great solecism.”

Difficulty: expert. One of 440 entries written and checked by hand.

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Nearby: soggy somber All 440 words