adj (1)不新鲜的，走味(干瘪)的((esp of food) not fresh and therefore dry and tasteless)：～biscuits/bread 变味的饼干/面包;～air 不新鲜的空气;the smell of～cigarette smoke 难闻的变质香烟味;The beer is～.这啤酒不新鲜了。The cake had become～and dry. 这蛋糕已变味，而且干硬了。These old peanuts taste～. 这些陈花生变味了。〖同〗flat，tasteless;〖反〗fresh;

(2)陈旧(腐)的(old，already known and etc therefore not interesting any more)：～jokes/news/cliches 老掉牙的笑话/过时的消息/陈词滥调;His ideas are～and dull. 他的思想陈腐无聊。His style of writing has become～. 他的写作风格已变得过时了。〖同〗flat，dull;〖反〗original，imaginative;

(3)疲沓的，怠倦的((of a person) no longer able to do sth well because of too much study，training，practice，etc)：If she practises the piano for more than two hours a day，she will grow～. 她如果一天练习钢琴超过两小时，她就会疲沓的。The athlete was～from lack of exercise. 那位运动员由于缺乏锻炼而倦怠了。The horse has gone～from too much running. 这匹马奔跑过度而倦怠了。

→′staleness n;

vi 变得不新鲜(疲沓)(become stale)[I]：His stories quickly～ed.他的故事很快变得不新鲜了。Are there any kind of pleasure that never～? 有那种永不衰退的乐趣吗?