While 前年 itself is a functional word, its significance lies in the beautifully logical and symmetrical system of relative time words in Mandarin. Unlike English, which becomes a bit clunky (“the year after next,” “the year before the year before last”), Chinese has concise, single words for these concepts. This system includes:
This pattern reflects a practical and structured approach to language, making discussions about the near past and future incredibly efficient. It's a small window into a cultural preference for clarity and pattern-based logic. It contrasts with the English method of using prepositional phrases (“two years ago,” “three years from now”), which is more descriptive but less concise.
前年 is a standard, neutral term used constantly in all contexts, from casual chats with friends to formal business reports and news broadcasts.
Its connotation is neutral, and its formality is universal.