without any difficulty; with ease; easily
Used to describe doing something smoothly and without trouble. Often appears in written or slightly formal contexts.
He solved the problem without any difficulty.
We arrived at our destination with ease.
Standard kanji spelling for this adverbial phrase.
Alternate kanji spelling using 無く for なく; less common but still seen.
造作 (ぞうさ) means 'trouble' or 'difficulty', and なく is the adverbial form of ない. The phrase literally means 'without trouble'.