Just so Definition 1 of 3Pro Tip 1/3Perfect Alignment Use 'just so' to express that everything is arranged to exact preference. She placed every ornament just so, ensuring the room looked flawless. Pro Tip 2/3Attention to Detail Suggest the idea that details are very important to the speaker or the situation. He set his tie just so, the length exactly right. Pro Tip 3/3Subtle Adjustments Expresses making small but significant adjustments to achieve a desired result. Adjust the flowers just so, they'll look better.