Definition: (adjective) Repeated too often; overfamiliar through overuse.
Synonyms: banal, old-hat, stock, threadbare, timeworn, trite, well-worn, tired, shopworn, commonplace.
Usage: For God's sake do not thrust upon me your hackneyed remarks, repeated to nausea, that "I was only a dreamer," while they even then had an understanding of life.
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Source: The Free Dictionary