Synonyms for cliché

noun

a ?cliché is an expression or idea which, though once fresh and forceful, has become hackneyed and weak through much repetition; a platitude is a trite remark or idea, esp. one uttered as if it were novel or profound; a commonplace is any obvious or conventional remark or idea; a truism is a statement whose truth is widely known and whose utterance, therefore, seems superfluous; bromide is an informal term for a platitude that is especially dull, tiresome, or banal