Concur With Jimi that probably the most acceptable antonym for "free of cost" is "on the market." But, "procured" or "priced" could operate as the opposite of "free of cost." This e book is free of cost. This book is priced. That dessert was free of demand. That dessert was https://web20backlinks88776.ampblogs.com/details-fiction-and-backlinks-seo-strategy-73389822