The phrase "limitless amount" means there is no set or fixed quantity or number. It suggests that something is boundless or infinite in quantity. Full definition
By taking action to stop a problem early, we can save ourselves almost limitless amounts of time, effort, hassle, strain, money and pain. (drwilliamryan.com)
At seven inches you can easily enjoy accessing an almost limitless amount of entertainment on a smaller, lighter, portable device. (lovemyfire.com)
It can also be enjoyable to look at and makes a lovely canvas for limitless amounts of ingredients. (lifehack.org)