The phrase "hadst tendency" can be synonymous with a variety of terms depending on the context in which it is used. Some possible alternatives include "inclination," "propensity," "predilection," "leaning," and "penchant." These words all suggest a tendency towards a certain behavior or mindset, whether it be positive or negative. Other synonyms for this phrase might include "habit," "predisposition," or "bias." Whatever the word choice, it is clear that "hadst tendency" refers to a person's characteristic way of thinking or acting, and can be used to describe both strong or subtle patterns in behavior over time.