What is a word for not modern

Several words describe something not modern, with each carrying distinct connotations. Outdated suggests something has become obsolete or no longer meets current standards. Old-fashioned implies adherence to past styles or methods, often with nostalgic or quaint associations. Antiquated carries stronger negative connotations of being so old as to be impractical or ineffective. Traditional neutrally describes practices or styles rooted in established customs rather than contemporary innovation.

More specific alternatives include archaic (extremely old or no longer in common use), obsolete (completely replaced by something better), dated (showing signs of age or lost relevance), or retro (deliberately evoking past styles). Conservative can describe resistance to modern changes, while classical or conventional describe established approaches without negative judgment. The best choice depends on whether you're describing technology, design, ideas, or practices, and whether you intend neutral observation, criticism, or appreciation for non-modern qualities.