Yesteryear/ˈjestərjɪr/ Definition 1 of 2Pro Tip 1/3Period Reference Used to refer to a nonspecific past, not strictly the previous year. The music of yesteryear still resonates with many today. Pro Tip 2/3Romanticizing Past Often used to romanticize or idealize the past, especially in comparison to the present. People often talk about the simpler times of yesteryear. Pro Tip 3/3Archaic Tone Gives a tone of old-fashionedness or antiquity to the sentence. The craftsmanship of yesteryear is unmatched in modern times.