"hadst it good" is a phrase used to express the idea that someone has enjoyed an advantageous or fortunate situation. There are several synonyms that can be used to convey a similar meaning to this phrase, such as "been lucky," "had good fortune," "enjoyed prosperity," "had a charmed life," or "lived the good life." Each of these expressions captures the sense that someone has had the privilege of experiencing a positive set of circumstances or outcomes. Using synonyms for "hadst it good" helps to add variety and depth to one's language, while also conveying a particular mood or tone.