索性 (suǒ xìng): you might as well (do it); simply; just

It was raining too hard, so we simply canceled the picnic and went to the movies instead.

Since we've already waited for two hours, we might as well wait a bit longer and finish watching the movie.

There wasn't much to eat in the fridge, so I just cooked a bowl of noodles and added an egg.

He had only intended to ask one question, but the teacher explained so well that he simply raised all his doubts.

The last bus had already left, so we just walked home slowly and enjoyed the night view along the way.

This piece of clothing is a bit small, but I really like the style, so I just bought it, planning to see if it can be altered at home.