The phrase 'haste makes waste' is a proverb that has been around for centuries, and it means that if you rush through something without taking the time to do it properly, you will likely end up with a poorer result. This phrase is often used to remind people to take their time and not rush through tasks, as rushing can lead to mistakes and wasted effort. The crossword solutions for this phrase are MAXIMALLY, which is an adverb meaning to the greatest degree or extent possible.