corny

adj.陈旧的; 过时的; 陈词滥调的; 老生常谈的

最高级：corniest复数：cornies

牛津词典

adj.

陈旧的；过时的；陈词滥调的；老生常谈的not original; used too often to be interesting or to sound sincere

a corny joke/song 老掉牙的笑话 / 歌曲

I know it sounds corny, but it really was love at first sight!我知道这听起来像陈词滥调，然而的确是一见钟情啊！