The word 'most out of fashion' refers to clothing, accessory or trend which is no longer considered stylish or trendy. Antonyms for this term can be 'in vogue', 'popular', 'fashionable', 'trendy', 'modern', or 'stylish'. These words represent items that are currently trending and in demand in the fashion industry. The fashion industry is dynamic, and what is most out of fashion today, might become the next trend tomorrow. Hence, keeping up with the latest fashion trends is essential to stay stylish and fashionable. It is important to note that personal style also plays a significant role in fashion, and staying true to one's fashion sense is always in fashion.