Old-hat and Old-time

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

Old-time and old-hat are semantically related. in old-fashioned topic. In some cases you can use "Old-time" instead an adjective phrase "Old-hat", when it comes to topics like antiquated. obsolete substitute

Old-time adjective - Pleasantly reminiscent of an earlier time.

Old-hat and old-time are semantically related. Sometimes you can use "Old-hat" instead an adjective phrase "Old-time".