Not current and Old-hat

Old-hat and not current are semantically related in old-fashioned topic. In some cases you can use "Old-hat" instead an adjective phrase "Not current", when it comes to topics like antiquated.

Old-hat adjective - Repeated too often; overfamiliar through overuse.

Not current and old-hat are semantically related in old-fashioned topic. Sometimes you can use "Not current" instead an adjective phrase "Old-hat", if it concerns topics such as antiquated.