Yesteryear means the recent past, especially a time that now seems old-fashioned or nostalgic. When someone talks about “the fashions of yesteryear,” they're referring to styles people wore years ago that look dated now. When a museum displays “technology of yesteryear,” it might show rotary phones, typewriters, or cassette tapes that your parents or grandparents used but that seem quaint today.

The word carries a gentle, wistful feeling. It suggests looking back fondly at how things used to be, often with a sense that those times were simpler or more charming. A grandparent might reminisce about “the games children played in yesteryear” before video games and smartphones existed. Writers often use it when contrasting old ways with modern ones: “The ice cream parlors of yesteryear have been replaced by chain restaurants.”

The word feels a bit formal and poetic, which is part of why it works so well when people want to evoke a sense of nostalgia and the passage of time.