Something unexciting or boring that induces yawning, as a book, sporting event, or performance.(noun)
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Use "yawner" in a sentence
"Saying a NFL division match-up with playoff implications is a yawner is a pretty big stretch, especially considering how physical the Giants and Eagles are."
"First there was a dreary 0-0 tie versus Uruguay the kind of yawner that if you had showed it to a soccer-ambivalent American, hoping to get them hooked on the Beautiful Game, they'd have called the police on you."
"The Basilica is certainly no "yawner" and I take that back."